diff --git a/app/Request/SafeRequest.php b/app/Request/SafeRequest.php
index 32d4135..72e2e2e 100644
--- a/app/Request/SafeRequest.php
+++ b/app/Request/SafeRequest.php
@@ -10,7 +10,10 @@ use Hyperf\Validation\Request\FormRequest;
 class SafeRequest extends FormRequest
 {
     protected array $scenes = [
-        'getOssSign' => ['user_type'],
+        'getOssSign' => [
+            'user_type',
+            'scene',
+        ],
     ];
 
     /**
@@ -28,6 +31,7 @@ class SafeRequest extends FormRequest
     {
         return [
             'user_type' => 'required|integer|min:1|max:3',
+            'scene' => 'required|integer|min:1|max:2',
         ];
     }
 
@@ -41,6 +45,10 @@ class SafeRequest extends FormRequest
             'user_type.integer' => HttpEnumCode::getMessage(HttpEnumCode::CLIENT_HTTP_ERROR),
             'user_type.min' => HttpEnumCode::getMessage(HttpEnumCode::CLIENT_HTTP_ERROR),
             'user_type.max' => HttpEnumCode::getMessage(HttpEnumCode::CLIENT_HTTP_ERROR),
+            'scene.required' => HttpEnumCode::getMessage(HttpEnumCode::CLIENT_HTTP_ERROR),
+            'scene.integer' => HttpEnumCode::getMessage(HttpEnumCode::CLIENT_HTTP_ERROR),
+            'scene.min' => HttpEnumCode::getMessage(HttpEnumCode::CLIENT_HTTP_ERROR),
+            'scene.max' => HttpEnumCode::getMessage(HttpEnumCode::CLIENT_HTTP_ERROR),
         ];
     }
 }
diff --git a/app/Services/SafeService.php b/app/Services/SafeService.php
index 25cf863..37e3063 100644
--- a/app/Services/SafeService.php
+++ b/app/Services/SafeService.php
@@ -17,6 +17,7 @@ class SafeService extends BaseService
     public function getOssSign(): array
     {
         $user_type = $this->request->input('user_type');
+        $scene = $this->request->input('scene');
         $user_info = $this->request->getAttribute("userInfo") ?? [];
 
         if (empty($user_info)){
@@ -31,6 +32,21 @@ class SafeService extends BaseService
             $dir = "applet/pharmacist/";
         }
 
+        switch ($scene) {
+            case 1:
+                // 头像
+                $dir = $dir . 'avatar/';
+                break;
+            case 2:
+                // 证书
+                $dir = $dir . 'cert/';
+                break;
+
+            default:
+                // code...
+                break;
+        }
+
         // 获取用户数据
         $params = array();
         $params['user_id'] = $user_info['user_id'];