diff --git a/app/api/logic/UserLogic.php b/app/api/logic/UserLogic.php
index 105193ab..1a094e6f 100755
--- a/app/api/logic/UserLogic.php
+++ b/app/api/logic/UserLogic.php
@@ -690,10 +690,13 @@ class UserLogic extends Logic
 
     public static function searchSn($post)
     {
-        $result = User::where(['id' => $post['sn'], 'del' => 0])->field('id, nickname, avatar as abs_avatar')->find();
-        if ($result) {
-            return $result;
+        if ($post['keyword']) {
+            $result = User::where(['sn' => $post['keyword'], 'del' => 0])->field('id, nickname, avatar as abs_avatar')->find();
+            if ($result) {
+                return $result;
+            }
         }
+
         return false;
     }
 }