diff --git a/app/Constants/PayWay.php b/app/Constants/PayWay.php
new file mode 100644
index 00000000..d0c168e2
--- /dev/null
+++ b/app/Constants/PayWay.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace App\Constants;
+
+use App\Services\WeChatPayService;
+
+class PayWay
+{
+    /*
+    |--------------------------------------------
+    | 微信支付
+    |--------------------------------------------
+    */
+    public const WXPAY_APP = 'wxpay_app';           // App 支付
+    public const WXPAY_JSAPI = 'wxpay_jsapi';       // JSAPI 支付
+    public const WXPAY_MINI = 'wxpay_mini';         // 小程序支付
+    public const WXPAY_H5 = 'wxpay_h5';           // H5 支付
+    public const WXPAY_NATIVE = 'wxpay_native';     // Native 支付
+
+    /**
+     * 微信支付交易类型
+     *
+     * @var array
+     */
+    public static $wxpayTradeTypes = [
+        self::WXPAY_APP => WeChatPayService::TRADE_TYPE_APP,
+        self::WXPAY_JSAPI => WeChatPayService::TRADE_TYPE_JSAPI,
+        self::WXPAY_MINI => WeChatPayService::TRADE_TYPE_JSAPI,
+        self::WXPAY_H5 => WeChatPayService::TRADE_TYPE_H5,
+        self::WXPAY_NATIVE => WeChatPayService::TRADE_TYPE_NATIVE,
+    ];
+}
diff --git a/app/Endpoint/Api/Http/Controllers/Order/OrderController.php b/app/Endpoint/Api/Http/Controllers/Order/OrderController.php
index 842f3c62..15ba9bde 100644
--- a/app/Endpoint/Api/Http/Controllers/Order/OrderController.php
+++ b/app/Endpoint/Api/Http/Controllers/Order/OrderController.php
@@ -148,4 +148,34 @@ class OrderController extends Controller
 
         return response()->noContent();
     }
+
+    /**
+     * 支付订单
+     *
+     * @param int $id
+     * @param \Illuminate\Http\Request $request
+     * @return \Illuminate\Http\JsonResponse
+     */
+    public function pay($id, Request $request)
+    {
+        $input = $request->validate([
+            'pay_way' => ['bail', 'required'],
+        ]);
+
+        $user = $request->user();
+
+        try {
+            return DB::transaction(function () use ($id, $user, $input) {
+                $order = $user->orders()->findOrFail($id);
+
+                return (new OrderService())->pay($order, $input['pay_way']);
+            });
+        } catch (BizException $e) {
+            throw $e;
+        } catch (Throwable $e) {
+            report($e);
+
+            throw new BizException('订单支付失败，请重试');
+        }
+    }
 }
diff --git a/app/Endpoint/Api/routes.php b/app/Endpoint/Api/routes.php
index 9dff35ba..ca5ae7cf 100644
--- a/app/Endpoint/Api/routes.php
+++ b/app/Endpoint/Api/routes.php
@@ -118,6 +118,7 @@ Route::group([
         Route::apiResource('order/orders', OrderController::class)->only([
             'index', 'store', 'show',
         ]);
+        Route::post('order/orders/{order}/pay', [OrderController::class, 'pay']);
         Route::post('order/orders/{order}/confirm', [OrderController::class, 'confirm']);
         Route::post('order/orders/{order}/cancel', [OrderController::class, 'cancel']);
     });
diff --git a/app/Services/OrderService.php b/app/Services/OrderService.php
index 4eb857ec..2691f11c 100644
--- a/app/Services/OrderService.php
+++ b/app/Services/OrderService.php
@@ -2,6 +2,7 @@
 
 namespace App\Services;
 
+use App\Constants\PayWay;
 use App\Endpoint\Api\Http\Resources\ProductSkuSimpleResource;
 use App\Endpoint\Api\Http\Resources\ShippingAddressResource;
 use App\Endpoint\Api\Http\Resources\UserCouponResource;
@@ -23,6 +24,16 @@ use Illuminate\Support\Facades\DB;
 
 class OrderService
 {
+    /**
+     * @var array
+     */
+    protected $wxpayWays = [
+        PayWay::WXPAY_APP,
+        PayWay::WXPAY_JSAPI,
+        PayWay::WXPAY_MINI,
+        PayWay::WXPAY_H5,
+    ];
+
     /**
      * 快速下单
      *
@@ -727,4 +738,36 @@ class OrderService
             ]);
         }
     }
+
+    /**
+     * 订单付款
+     *
+     * @param \App\Models\Order $order
+     * @param string $payWay
+     * @return mixed
+     *
+     * @throws \App\Exceptions\WeChatPayException
+     */
+    public function pay(Order $order, string $payWay)
+    {
+        if (! $order->isPending()) {
+            throw new BizException('订单状态不是待付款');
+        }
+
+        if (in_array($payWay, $this->wxpayWays)) {
+            return (new WeChatPayService())->pay([
+                'attach' => json_encode([
+                    'pay_target' => 'order',
+                    'pay_way' => $payWay,
+                ]),
+                'body' => config('settings.app_name').'-商城订单',
+                'out_trade_no' => $order->sn,
+                'total_fee' => $order->total_amount,
+                'notify_url' => url(route('wxpay.paid_notify', [], false), [], true),
+                'trade_type' => PayWay::$wxpayTradeTypes[$payWay],
+            ]);
+        }
+
+        throw new BizException('支付方式不支持');
+    }
 }