diff --git a/database/2022_08_15_083640_create_orders_table.php b/database/2022_08_15_083640_create_orders_table.php
index 892943d..e373296 100644
--- a/database/2022_08_15_083640_create_orders_table.php
+++ b/database/2022_08_15_083640_create_orders_table.php
@@ -32,6 +32,7 @@ return new class extends Migration
 
             $table->unsignedInteger('pay_status')->default(0)->comment('支付状态');
             $table->unsignedInteger('refund_status')->default(0)->comment('退款状态');
+            $table->decimal('refund_money', 12, 2)->default(0)->comment('已退款金额');
             $table->unsignedInteger('ship_status')->default(0)->comment('配送状态');
 
             $table->string('ship_way')->nullable()->comment('配送方式');
diff --git a/database/2022_10_11_121445_create_order_refunds_table.php b/database/2022_10_11_121445_create_order_refunds_table.php
new file mode 100644
index 0000000..8969a08
--- /dev/null
+++ b/database/2022_10_11_121445_create_order_refunds_table.php
@@ -0,0 +1,43 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('order_refunds', function (Blueprint $table) {
+            $table->id();
+            $table->unsignedBigInteger('order_id')->comment('订单ID, orders.id');
+            $table->string('sn')->comment('退款流水号');
+
+            $table->unsignedInteger('refund_status')->default(0)->comment('退款状态');
+            $table->string('refund_way')->nullable()->comment('退款方式');
+            $table->decimal('refund_money', 12, 2)->nullable()->comment('退款金额');
+            $table->dateTime('finish_at')->nullable()->comment('完成时间');
+            $table->string('refund_reason')->nullable()->comment('退款原因');
+            $table->json('refund_data')->nullable()->comment('退款备注');
+
+            $table->timestamps();
+
+            $table->comment('订单退款');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('order_refunds');
+    }
+};
diff --git a/lang/en/refund.php b/lang/en/refund.php
new file mode 100644
index 0000000..ca5d8ed
--- /dev/null
+++ b/lang/en/refund.php
@@ -0,0 +1,5 @@
+<?php
+
+return [
+
+];
diff --git a/lang/zh_CN/refund.php b/lang/zh_CN/refund.php
new file mode 100644
index 0000000..e595a8a
--- /dev/null
+++ b/lang/zh_CN/refund.php
@@ -0,0 +1,22 @@
+<?php
+
+return [
+    'labels' => [
+        'Refund' => '退款申请',
+        'order-refunds' => '退款申请',
+    ],
+    'fields' => [
+        'order_id' => '订单',
+        'order' => [
+            'sn' => '订单号'
+        ],
+        'sn' => '退款单号',
+        'refund_status' => '退款状态',
+        'refund_way' => '退款方式',
+        'refund_money' => '退款金额',
+        'finish_at' => '完成时间',
+        'refund_reason' => '原因',
+        'refund_data' => '其他',
+        'created_at' => '申请时间',
+    ]
+];
diff --git a/routes/admin.php b/routes/admin.php
index 2b07f5f..451dbed 100644
--- a/routes/admin.php
+++ b/routes/admin.php
@@ -9,4 +9,5 @@ Route::group([
     'middleware' => config('admin.route.middleware'),
 ], function () {
     Route::resource('orders', OrderController::class)->only(['index', 'show', 'destroy'])->names('dcat.admin.order');
+    Route::resource('order-refunds', RefundController::class)->only(['index', 'show', 'edit', 'update'])->names('dcat.admin.order_refunds');
 });
diff --git a/src/Action/ShowRefund.php b/src/Action/ShowRefund.php
new file mode 100644
index 0000000..96464b1
--- /dev/null
+++ b/src/Action/ShowRefund.php
@@ -0,0 +1,37 @@
+<?php
+
+namespace Peidikeji\Order\Action;
+
+use Dcat\Admin\Show\AbstractTool;
+use Dcat\Admin\Widgets\Modal;
+use Peidikeji\Order\Form\RefundForm;
+
+class ShowRefund extends AbstractTool
+{
+    protected $style = 'btn btn-sm btn-danger';
+
+    protected $title = '申请退款';
+
+    public function html()
+    {
+        $model = $this->parent->model();
+
+        return Modal::make()
+            ->lg()
+            ->title($this->title)
+            ->body(RefundForm::make()->payload(['id' => $model->id, 'pay_money' => $model->pay_money, 'refund_money' => $model->refund_money]))
+            ->button('<button type="button" class="'.$this->style.'">'.$this->title.'</button>');
+    }
+
+    protected function authorize($user): bool
+    {
+        return $user->can('dcat.admin.orders.refund');
+    }
+
+    public function allowed()
+    {
+        $model = $this->parent->model();
+
+        return $model->canRefund();
+    }
+}
diff --git a/src/Enums/OrderStatus.php b/src/Enums/OrderStatus.php
index c70b15c..c7519a3 100644
--- a/src/Enums/OrderStatus.php
+++ b/src/Enums/OrderStatus.php
@@ -15,6 +15,10 @@ enum OrderStatus: int
     case PayFail = 7;
     case Cancel = 8;
 
+    case Refunding = 9;
+    case Refund = 10;
+    case RefundFull = 11;
+
     public static function options()
     {
         return [
@@ -31,6 +35,10 @@ enum OrderStatus: int
 
             self::PayFail->value => '支付失败',
             self::Cancel->value => '已取消',
+
+            self::Refunding->value => '退款中',
+            self::Refund->value => '已退款(部分)',
+            self::RefundFull->value => '已退款(全额)',
         ];
     }
 
diff --git a/src/Enums/RefundStatus.php b/src/Enums/RefundStatus.php
index ab5d82e..9ba671a 100644
--- a/src/Enums/RefundStatus.php
+++ b/src/Enums/RefundStatus.php
@@ -17,7 +17,7 @@ enum RefundStatus: int
     {
         return [
             self::None->value => '未申请',
-            self::Apply->value => '已申请',
+            self::Apply->value => '待审核',
             self::Processing->value => '处理中',
             self::Success->value => '退款成功',
             self::Fail->value => '退款失败',
diff --git a/src/Enums/RefundWay.php b/src/Enums/RefundWay.php
new file mode 100644
index 0000000..60c8219
--- /dev/null
+++ b/src/Enums/RefundWay.php
@@ -0,0 +1,48 @@
+<?php
+
+namespace Peidikeji\Order\Enums;
+
+enum RefundWay: int
+{
+    case Offline = 0;
+    case Origin = 1;
+
+    public static function options()
+    {
+        return [
+            self::Offline->value => '线下',
+            self::Origin->value => '原路退回',
+        ];
+    }
+
+    public function text()
+    {
+        return data_get(self::options(), $this->value);
+    }
+
+    public function color()
+    {
+        return match ($this) {
+            static::Offline => 'warning',
+            static::Origin => 'success',
+        };
+    }
+
+    public function label()
+    {
+        $color = $this->color();
+
+        $name = $this->text();
+
+        return "<span class='label bg-${color}'>{$name}</span>";
+    }
+
+    public function dot()
+    {
+        $color = $this->color();
+
+        $name = $this->text();
+
+        return "<i class='fa fa-circle text-$color'>&nbsp;&nbsp;{$name}</span>";
+    }
+}
diff --git a/src/Form/RefundForm.php b/src/Form/RefundForm.php
new file mode 100644
index 0000000..cda7d2c
--- /dev/null
+++ b/src/Form/RefundForm.php
@@ -0,0 +1,66 @@
+<?php
+
+namespace Peidikeji\Order\Form;
+
+use Dcat\Admin\Admin;
+use Dcat\Admin\Contracts\LazyRenderable;
+use Dcat\Admin\Traits\LazyWidget;
+use Dcat\Admin\Widgets\Form;
+use Illuminate\Support\Arr;
+use Illuminate\Support\Facades\DB;
+use Peidikeji\Order\Enums\RefundWay;
+use Peidikeji\Order\Exceptions\OrderException;
+use Peidikeji\Order\Models\Order;
+use Peidikeji\Order\RefundService;
+
+class RefundForm extends Form implements LazyRenderable
+{
+    use LazyWidget;
+
+    protected $buttons = ['reset' => false, 'submit' => true];
+
+    public function handle(array $input)
+    {
+        try {
+            DB::beginTransaction();
+            $order = Order::findOrFail($this->payload['id']);
+            $money = $input['refund_money'];
+            $attributes = Arr::only($input, ['refund_reason', 'refund_way', 'refund_money', 'refund_sn']);
+            $info = RefundService::make()->apply($order, $attributes);
+
+            $admin = Admin::user();
+            $attributes['refund_id'] = $info->id;
+            $order->options()->create([
+                'user_type' => $admin->getMorphClass(),
+                'user_id' => $admin->id,
+                'description' => '管理员: '.$admin->name.' 申请退款: ' . $money,
+                'attribute' => $attributes,
+            ]);
+            DB::commit();
+            return $this->response()->success('申请成功, 等待审核')->refresh();
+        } catch (OrderException $e) {
+            DB::rollBack();
+            return $this->response()->error($e->getMessage());
+        }
+    }
+
+    public function form()
+    {
+        // 支付金额
+        $payMoney = $this->payload['pay_money'];
+        // 已退款金额
+        $refundedMoney = $this->payload['refund_money'];
+        $this->text('refund_reason', __('dcat-admin-order::refund.fields.refund_reason'))->required();
+        $this->select('refund_way', __('dcat-admin-order::refund.fields.refund_way'))->options(RefundWay::options())->required();
+        $this->currency('refund_money', __('dcat-admin-order::refund.fields.refund_money'))->symbol('￥')->help('最大值: ' . floatval($payMoney - $refundedMoney));
+        $this->text('refund_sn', __('dcat-admin-order::refund.fields.sn'));
+    }
+
+    public function default()
+    {
+        return [
+            'refund_way' => RefundWay::Origin,
+            'refund_money' => floatval($this->payload['pay_money'] - $this->payload['refund_money'])
+        ];
+    }
+}
\ No newline at end of file
diff --git a/src/Http/Admin/OrderController.php b/src/Http/Admin/OrderController.php
index 9d6d04a..32dcd5c 100644
--- a/src/Http/Admin/OrderController.php
+++ b/src/Http/Admin/OrderController.php
@@ -15,14 +15,6 @@ use Dcat\Admin\Show;
 use Dcat\Admin\Show\Tools;
 use Dcat\Admin\Widgets\Box;
 use Illuminate\Support\Arr;
-use Peidikeji\Order\Action\ShowCancel;
-use Peidikeji\Order\Action\ShowDelete;
-use Peidikeji\Order\Action\ShowPay;
-use Peidikeji\Order\Action\ShowPayQuery;
-use Peidikeji\Order\Action\ShowPrice;
-use Peidikeji\Order\Action\ShowReceive;
-use Peidikeji\Order\Action\ShowRemarks;
-use Peidikeji\Order\Action\ShowShip;
 use Peidikeji\Order\Enums\OrderStatus;
 use Peidikeji\Order\Enums\PayStatus;
 use Peidikeji\Order\Models\Order;
@@ -44,9 +36,9 @@ class OrderController extends AdminController
 
             $grid->filter(function (Filter $filter) {
                 $filter->panel();
-                $filter->like('sn')->width(4);
-                $filter->equal('user_id')->select()->ajax('api/user?_paginate=1')->model(User::class, 'id', 'phone')->width(4);
-                $filter->where('order_status', fn($q) => $q->filter(['status' => $this->input]))->select(OrderStatus::options())->width(4);
+                $filter->like('sn')->width(3);
+                $filter->equal('user_id')->select()->ajax('api/user?_paginate=1')->model(User::class, 'id', 'phone')->width(3);
+                $filter->where('order_status', fn($q) => $q->filter(['status' => $this->input]))->select(OrderStatus::options())->width(3);
                 $filter->whereBetween('created_at', function ($q) {
                     $start = data_get($this->input, 'start');
                     $start = $start ? Carbon::createFromFormat('Y-m-d', $start) : null;
@@ -60,7 +52,7 @@ class OrderController extends AdminController
                     } else if ($end) {
                         $q->where('created_at', '<=', $end);
                     }
-                })->date()->width(4);
+                })->date()->width(6);
             });
 
             $grid->column('sn')->copyable();
@@ -128,14 +120,15 @@ class OrderController extends AdminController
                 $show->width(6)->field('remarks');
             });
             $show->tools(function (Tools $tools) {
-                $tools->append(new ShowCancel());
-                $tools->append(new ShowPay());
-                $tools->append(new ShowPayQuery());
-                $tools->append(new ShowShip());
-                $tools->append(new ShowReceive());
-                $tools->append(new ShowDelete());
-                $tools->append(new ShowPrice());
-                $tools->append(new ShowRemarks());
+                $tools->append(new \Peidikeji\Order\Action\ShowCancel());
+                $tools->append(new \Peidikeji\Order\Action\ShowPay());
+                $tools->append(new \Peidikeji\Order\Action\ShowPayQuery());
+                $tools->append(new \Peidikeji\Order\Action\ShowShip());
+                $tools->append(new \Peidikeji\Order\Action\ShowReceive());
+                $tools->append(new \Peidikeji\Order\Action\ShowDelete());
+                $tools->append(new \Peidikeji\Order\Action\ShowPrice());
+                $tools->append(new \Peidikeji\Order\Action\ShowRefund());
+                $tools->append(new \Peidikeji\Order\Action\ShowRemarks());
             });
         }));
 
diff --git a/src/Http/Admin/RefundController.php b/src/Http/Admin/RefundController.php
new file mode 100644
index 0000000..01454c7
--- /dev/null
+++ b/src/Http/Admin/RefundController.php
@@ -0,0 +1,101 @@
+<?php
+
+namespace Peidikeji\Order\Http\Admin;
+
+use Carbon\Carbon;
+use Dcat\Admin\Admin;
+use Dcat\Admin\Grid;
+use Dcat\Admin\Grid\Filter;
+use Dcat\Admin\Http\Controllers\AdminController;
+use Dcat\Admin\Show;
+use Dcat\Admin\Form;
+use Dcat\Admin\Grid\Displayers\Actions;
+use Peidikeji\Order\Enums\RefundStatus;
+use Peidikeji\Order\Enums\RefundWay;
+use Peidikeji\Order\Models\OrderRefund;
+
+class RefundController extends AdminController
+{
+    protected $translation = 'dcat-admin-order::refund';
+
+    protected function grid()
+    {
+        return Grid::make(OrderRefund::with(['order']), function (Grid $grid) {
+            $grid->model()->sort();
+
+            $grid->column('order.sn');
+            $grid->column('sn');
+            $grid->column('refund_reason');
+            $grid->column('refund_money');
+            $grid->column('refund_status')->display(fn() => $this->refund_status->label());
+            $grid->column('created_at');
+
+            $grid->filter(function (Filter $filter) {
+                $filter->panel();
+                $filter->like('order.sn')->width(3);
+                $filter->like('sn')->width(3);
+                $filter->equal('refund_status')->select(RefundStatus::options())->width(3);
+                $filter->whereBetween('created_at', function ($q) {
+                    $start = data_get($this->input, 'start');
+                    $start = $start ? Carbon::createFromFormat('Y-m-d', $start) : null;
+                    $end = data_get($this->input, 'end');
+                    $end = $end ? Carbon::createFromFormat('Y-m-d', $end) : null;
+                    if ($start) {
+                        if ($end) {
+                            $q->whereBetween('created_at', [$start, $end]);
+                        }
+                        $q->where('created_at', '>=', $start);
+                    } else if ($end) {
+                        $q->where('created_at', '<=', $end);
+                    }
+                })->date()->width(6);
+            });
+
+            $grid->disableRowSelector();
+            $grid->disableCreateButton();
+            $grid->disableDeleteButton();
+
+            $user = Admin::user();
+            $grid->actions(function (Actions $actions) use ($user) {
+                $row = $actions->row;
+                $actions->edit($row->refund_status === RefundStatus::Apply && $user->can('dcat.admin.order_refunds.edit'));
+            });
+        });
+    }
+
+    protected function detail($id)
+    {
+        return Show::make($id, OrderRefund::with(['order']), function (Show $show) {
+            $show->field('order.sn');
+            $show->field('sn');
+            $show->field('refund_reason');
+            $show->field('refund_money');
+            $show->field('refund_way')->as(fn() => $this->refund_way->label())->unescape();
+            $show->field('refund_status')->as(fn() => $this->refund_status->label())->unescape();
+            $show->field('finish_at');
+            $show->field('created_at');
+            $show->field('refund_data')->json();
+
+            $show->disableDeleteButton();
+            $show->disableEditButton();
+        });
+    }
+
+    protected function form()
+    {
+        return Form::make(OrderRefund::with(['order']), function (Form $form) {
+            $form->display('order.sn');
+            $form->text('sn')->required();
+            $form->select('refund_way')->options(RefundWay::options())->required();
+            $form->currency('refund_money')->symbol('￥')->required();
+            $form->text('refund_reason')->required();
+
+            $form->disableEditingCheck();
+            $form->disableCreatingCheck();
+            $form->disableViewCheck();
+
+            $form->disableViewButton();
+            $form->disableDeleteButton();
+        });
+    }
+}
diff --git a/src/Http/Api/OrderController.php b/src/Http/Api/OrderController.php
index 68fd06e..49eddbc 100644
--- a/src/Http/Api/OrderController.php
+++ b/src/Http/Api/OrderController.php
@@ -42,8 +42,6 @@ class OrderController extends Controller
         $request->validate([
             'goods' => [Rule::requiredIf(!$request->filled('cart_id')), 'array'],
             'cart_id' => ['array'],
-            'address' => [Rule::requiredIf(!$request->filled('address_id')), 'array'],
-            'address_id' => ['numeric']
         ]);
         $user = auth('api')->user();
 
@@ -107,8 +105,7 @@ class OrderController extends Controller
 
         $request->validate([
             'goods' => [Rule::requiredIf(!$request->filled('cart_id')), 'array'],
-            'cart_id' => ['array'],
-            'address' => [Rule::requiredIf(!$request->filled('address_id')), 'array'],
+            'cart_id' => ['array']
         ]);
         $store = OrderStore::init()->user($user)->remarks($request->input('remarks'));
 
@@ -118,8 +115,8 @@ class OrderController extends Controller
         }
         $store->goods($goods);
 
-        $address = $this->getAddress();
-        $store->ship($request->input('ship_way', ShipWay::None->value), $address);
+        $shipWay = $request->input('ship_way', ShipWay::None->value);
+        $store->ship($shipWay, $shipWay === ShipWay::Express ? $this->getAddress() : null);
 
         $store->score($request->input('score', 0));
        
diff --git a/src/Models/Order.php b/src/Models/Order.php
index 34a089e..ea7f097 100644
--- a/src/Models/Order.php
+++ b/src/Models/Order.php
@@ -25,7 +25,8 @@ class Order extends Model
         'ship_address', 'ship_at', 'ship_money', 'ship_status', 'ship_way', 'receive_at',
         'score_discount_amount', 'score_discount_money', 'score_discount_ratio',
         'pay_at', 'pay_money', 'pay_no', 'pay_status', 'pay_way', 'discount_price',
-        'auto_close_at', 'extra', 'is_closed', 'refund_status', 'remarks', 'review_at', 'user_remarks'
+        'refund_status', 'refund_money',
+        'auto_close_at', 'extra', 'is_closed', 'remarks', 'review_at', 'user_remarks'
     ];
 
     protected $casts = [
@@ -67,6 +68,11 @@ class Order extends Model
         return $this->hasMany(OrderOption::class, 'order_id');
     }
 
+    public function refunds()
+    {
+        return $this->hasMany(OrderRefund::class, 'order_id');
+    }
+
     public function status()
     {
         if ($this->is_closed) {
@@ -82,6 +88,12 @@ class Order extends Model
             return OrderStatus::PayFail;
         }
         if ($this->pay_status === PayStatus::Success) {
+            if ($this->refund_status === RefundStatus::Apply || $this->refund_status === RefundStatus::Processing) {
+                return OrderStatus::Refunding;
+            }
+            if ($this->refund_status === RefundStatus::Success) {
+                return $this->refund_money >= $this->pay_money ? OrderStatus::RefundFull : OrderStatus::Refund;
+            }
             if ($this->ship_status === ShipStatus::Processing) {
                 return OrderStatus::Send;
             }
@@ -203,6 +215,35 @@ class Order extends Model
         return true;
     }
 
+    public function canRefund($throw = false)
+    {
+        if ($this->pay_status === PayStatus::None || $this->pay_status === PayStatus::Processing) {
+            if ($throw) {
+                throw new OrderException('订单未支付, 无法申请退款');
+            }
+            return false;
+        }
+        if ($this->pay_status === PayStatus::Refund) {
+            if ($throw) {
+                throw new OrderException('订单已经退款');
+            }
+            return false;
+        }
+        if ($this->refund_status === RefundStatus::Apply || $this->refund_status === RefundStatus::Processing) {
+            if ($throw) {
+                throw new OrderException('退款申请处理中');
+            }
+            return false;
+        }
+        if ($this->refund_money >= $this->pay_money) {
+            if ($throw) {
+                throw new OrderException('订单已经全额退款, 不能再申请退款');
+            }
+            return false;
+        }
+        return true;
+    }
+
     public function scopeSort($q)
     {
         return $q->orderBy('created_at', 'desc');
diff --git a/src/Models/OrderRefund.php b/src/Models/OrderRefund.php
new file mode 100644
index 0000000..29032ec
--- /dev/null
+++ b/src/Models/OrderRefund.php
@@ -0,0 +1,37 @@
+<?php
+
+namespace Peidikeji\Order\Models;
+
+use Dcat\Admin\Traits\HasDateTimeFormatter;
+use Illuminate\Database\Eloquent\Model;
+use Peidikeji\Order\Enums\RefundStatus;
+use Peidikeji\Order\Enums\RefundWay;
+
+class OrderRefund extends Model
+{
+    use HasDateTimeFormatter;
+
+    protected $fillable = ['order_id', 'sn', 'refund_status', 'refund_way', 'refund_money', 'finish_at', 'refund_reason', 'refund_data'];
+
+    protected $casts = [
+        'refund_data' => 'json',
+        'refund_status' => RefundStatus::class,
+        'refund_way' => RefundWay::class,
+    ];
+
+    protected $dates = ['finish_at'];
+
+    protected $attributes = [
+        'refund_status' => RefundStatus::None,
+    ];
+
+    public function order()
+    {
+        return $this->belongsTo(Order::class, 'order_id');
+    }
+
+    public function scopeSort($q)
+    {
+        return $q->orderBy('created_at', 'desc');
+    }
+}
diff --git a/src/OrderServiceProvider.php b/src/OrderServiceProvider.php
index ebfe652..461bdee 100644
--- a/src/OrderServiceProvider.php
+++ b/src/OrderServiceProvider.php
@@ -52,7 +52,8 @@ class OrderServiceProvider extends ServiceProvider
             // ]],
             $menu->add([
                 ['id' => 1, 'parent_id' => 0, 'title' => '订单模块', 'icon' => 'feather icon-book', 'uri' => '', 'permission' => ['orders']],
-                ['id' => 2, 'parent_id' => 1, 'title' => '订单管理', 'icon' => '', 'uri' => '/orders', 'permission' => 'orders.index']
+                ['id' => 2, 'parent_id' => 1, 'title' => '订单管理', 'icon' => '', 'uri' => '/orders', 'permission' => 'orders.index'],
+                ['id' => 3, 'parent_id' => 1, 'title' => '退款申请', 'icon' => '', 'uri' => '/order-refunds', 'permission' => 'order_refunds.index'],
             ]);
         });
     }
diff --git a/src/RefundService.php b/src/RefundService.php
new file mode 100644
index 0000000..91ee461
--- /dev/null
+++ b/src/RefundService.php
@@ -0,0 +1,133 @@
+<?php
+
+namespace Peidikeji\Order;
+
+use Peidikeji\Order\Enums\RefundStatus;
+use Peidikeji\Order\Enums\RefundWay;
+use Peidikeji\Order\Exceptions\OrderException;
+use Peidikeji\Order\Models\Order;
+use Peidikeji\Order\Models\OrderRefund;
+
+class RefundService
+{
+    public static function make()
+    {
+        return new static();
+    }
+
+    /**
+     * 订单申请退款
+     * 
+     * @param Order $order
+     * @param array $params [refund_reason, refund_way, refund_money, refund_sn]
+     * @return OrderRefund
+     * @throws OrderException
+     */
+    public function apply(Order $order, $params = [])
+    {
+        $order->canRefund(true);
+        $money = data_get($params, 'refund_money', $order->pay_money - $order->refund_money);
+        if ($money + $order->refund_money > $order->pay_money) {
+            throw new OrderException('退款金额超过支付金额');
+        }
+        if ($order->refunds()->whereIn('refund_status', [RefundStatus::Apply, RefundStatus::Processing])->exists()) {
+            throw new OrderException('退款申请处理中, 请勿重复申请');
+        }
+        $orderService = OrderService::make();
+        $sn = $orderService->generateSn();
+        $way = data_get($params, 'way', RefundWay::Origin->value);
+        
+        $info = $order->refunds()->create([
+            'sn' => $sn,
+            'refund_status' => RefundStatus::Apply,
+            'refund_way' => $way,
+            'refund_money' => $money,
+            'refund_reason' => data_get($params, 'refund_reason'),
+        ]);
+
+        $order->update(['refund_status' => RefundStatus::Apply]);
+
+        return $info;
+    }
+
+    /**
+     * 处理退款申请
+     * 
+     * @param Order $order
+     * @param bool $status 同意/不同意
+     * @param string $reason 不同意的原因
+     * @throws OrderException
+     */
+    public function handle(OrderRefund $info, bool $status, $reason = '')
+    {
+        if ($info->refund_status !== RefundStatus::Apply && $info->refund_status !== RefundStatus::Fail) {
+            throw new OrderException('退款已经处理');
+        }
+
+        $info->refund_status = RefundStatus::Processing;
+        if ($status) {
+            if ($info->refund_way === RefundWay::Origin) {
+                $orderService = OrderService::make();
+                $result = $orderService->refundPay($info->order, $info->refund_money, $info->refund_reason, $info->sn);
+                if ($result) {
+                    $this->success($info, $result);
+                } else {
+                    $this->fail($info, $result['message']);
+                }
+            }
+            else if ($info->refund_way === RefundWay::Offline) {
+                $this->success($info);
+            }
+        } else {
+            $this->fail($info, $reason);
+        }
+    }
+
+    public function success(OrderRefund $info, array $params = null)
+    {
+        if ($info->refund_status !== RefundStatus::Processing) {
+            throw new OrderException('退款已经处理');
+        }
+
+        $info->update([
+            'refund_status' => RefundStatus::Success,
+            'finish_at' => data_get($params, 'finish_at', now()),
+            'refund_data' => $params
+        ]);
+
+        $order = $info->order;
+        if ($order) {
+            $order->increment('refund_money', $info->refund_money, ['refund_status' => RefundStatus::Success]);
+        }
+    }
+
+    public function fail(OrderRefund $info, $reason = '')
+    {
+        if ($info->refund_status !== RefundStatus::Processing) {
+            throw new OrderException('退款已经处理');
+        }
+
+        $info->update([
+            'refund_status' => RefundStatus::Fail,
+            'finish_at' => now(),
+            'refund_data' => ['fail_reason' => $reason],
+        ]);
+
+        $order = $info->order;
+        if ($order) {
+            $order->update(['refund_status' => RefundStatus::Fail]);
+        }
+    }
+
+    public function cancel(OrderRefund $info)
+    {
+        $info->update([
+            'refund_status' => RefundStatus::Cancel,
+            'finish_at' => now(),
+        ]);
+        $order = $info->order;
+        if ($order) {
+            $order->update(['refund_status' => RefundStatus::Cancel]);
+        }
+    }
+}
\ No newline at end of file