diff --git a/README.md b/README.md
index 582d5b0..0601a66 100644
--- a/README.md
+++ b/README.md
@@ -357,6 +357,8 @@ API_BASE=http://127.0.0.1:8800
 |desp|消息内容第二部分，选填|
 |type|格式，选填|文本=text，markdown，图片=image，默认为markdown|
 
+type 为 image 时，text 中为要发送图片的URL。
+
 #### 获得当前用户的消息列表
 
 `POST /message/list`
diff --git a/api/app/Http/Controllers/PushDeerMessageController.php b/api/app/Http/Controllers/PushDeerMessageController.php
index 024056b..160fa2b 100644
--- a/api/app/Http/Controllers/PushDeerMessageController.php
+++ b/api/app/Http/Controllers/PushDeerMessageController.php
@@ -60,6 +60,10 @@ class PushDeerMessageController extends Controller
             $validated['type'] = 'markdown';
         }
 
+        if (strtolower($validated['type'])=='image') {
+            $validated['text'] = '[图片]';
+        }
+
         $key = PushDeerKey::where('key', $validated['pushkey'])->get()->first();
 
         $result = [];