diff --git a/src/Models/Administrator.php b/src/Models/Administrator.php
index fe02699..89fd82c 100755
--- a/src/Models/Administrator.php
+++ b/src/Models/Administrator.php
@@ -10,6 +10,7 @@ use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsToMany;
 use Illuminate\Support\Facades\Storage;
 use Illuminate\Support\Facades\URL;
+use Illuminate\Support\Collection;
 
 /**
  * Class Administrator.
@@ -24,6 +25,8 @@ class Administrator extends Model implements AuthenticatableContract
 
     const DEFAULT_ID = 1;
 
+    public const SESSION_KEY = 'user_permissions';
+
     protected $fillable = ['username', 'password', 'name', 'avatar'];
 
     /**
@@ -89,6 +92,76 @@ class Administrator extends Model implements AuthenticatableContract
      */
     public function canSeeMenu($menu)
     {
-        return true;
+        //通过权限判断, 是否有该菜单权限
+        //该菜单是否是底级菜单
+        if (isset($menu['children']) && !empty($menu['children'])) {
+            foreach ($menu['children'] as $item) {
+                if ($this->canSeeMenu($item)) {
+                    return true;
+                }
+            }
+        } else {
+            //判断权限
+            if (empty($menu['permissions'])) {
+                return true;
+            } else {
+                foreach ($menu['permissions'] as $permission) {
+                    if ($this->hasPermission($permission['slug'])) {
+                        return true;
+                    }
+                }
+                return false;
+            }
+        }
+        return false;
+    }
+
+    public function hasPermission(string $slug): bool
+    {
+        //判断是否是超级管理员
+        if ($this->isAdministrator()) {
+            return true;
+        }
+        //判断是否有权限
+        return in_array($slug, $this->getCachePermissions()->pluck('slug')->toArray());
+    }
+
+    /**
+     * 获取缓存权限
+     *
+     * @return Collection|null
+     */
+    public function getCachePermissions(): ?Collection
+    {
+        $key = self::SESSION_KEY;
+        if (session()->has($key)) {
+            return session($key);
+        }
+        //获取角色权限
+
+        $permissions = $this->getPermissions();
+
+        //缓存权限
+        session([$key => $permissions]);
+
+        return $permissions;
+    }
+
+    public function getPermissions(): ?Collection
+    {
+        $permissions = [];
+        foreach ($this->roles()->with('permissions')->get() as $role) {
+            foreach ($role->permissions as $permission) {
+                $permissions[$permission->id] = $permission;
+            }
+        }
+        //转为集合
+        $permissions = collect($permissions);
+        return $permissions;
+    }
+
+    public function clearCachePermission()
+    {
+        session()->forget(self::SESSION_KEY);
     }
 }
diff --git a/src/Models/Menu.php b/src/Models/Menu.php
index 9cdff45..ffa4485 100755
--- a/src/Models/Menu.php
+++ b/src/Models/Menu.php
@@ -2,11 +2,12 @@
 
 namespace Dcat\Admin\Models;
 
-use Dcat\Admin\Traits\HasDateTimeFormatter;
+use Dcat\Admin\Admin;
 use Dcat\Admin\Traits\ModelTree;
-use Illuminate\Database\Eloquent\Model;
-use Illuminate\Database\Eloquent\Relations\BelongsToMany;
 use Spatie\EloquentSortable\Sortable;
+use Illuminate\Database\Eloquent\Model;
+use Dcat\Admin\Traits\HasDateTimeFormatter;
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
 
 /**
  * Class Menu.
@@ -107,11 +108,14 @@ class Menu extends Model implements Sortable
     public function fetchAll()
     {
         return $this->withQuery(function ($query) {
-            if (static::withPermission()) {
-                $query = $query->with('permissions');
+            return $query->with('permissions');
+            if (!Admin::user()?->isAdministrator()) {
+                return $query->with('permissions')->whereHas('permissions', function ($q) {
+                    $q->whereIn('id', Admin::user()?->getCachePermissions()->pluck('id')->toArray() ?? []);
+                });
+            } else {
+                return $query->with('permissions');
             }
-
-            return $query->with('roles');
         })->treeAllNodes();
     }