diff --git a/src/api/admin/sys-user.js b/src/api/admin/sys-user.js
index 07c1d0ae..7fb28592 100644
--- a/src/api/admin/sys-user.js
+++ b/src/api/admin/sys-user.js
@@ -121,7 +121,8 @@ export function uploadAvatar(data) {
   return request({
     url: '/api/v1/user/avatar',
     method: 'post',
-    data: data
+    data: data,
+    headers: { 'Content-Type': 'multipart/form-data' }
   })
 }
 
diff --git a/src/utils/request.js b/src/utils/request.js
index c61c35d1..bd38c19f 100644
--- a/src/utils/request.js
+++ b/src/utils/request.js
@@ -20,7 +20,10 @@ service.interceptors.request.use(
       // ['X-Token'] is a custom headers key
       // please modify it according to the actual situation
       config.headers['Authorization'] = 'Bearer ' + getToken()
-      config.headers['Content-Type'] = 'application/json'
+      // while not set Content-Type, default is application/json
+      if (!config.headers['Content-Type']) {
+        config.headers['Content-Type'] = 'application/json'
+      }
     }
     return config
   },