diff --git a/application/api/model/UserMessage.php b/application/api/model/UserMessage.php
index 84a493c7..beb473e3 100644
--- a/application/api/model/UserMessage.php
+++ b/application/api/model/UserMessage.php
@@ -65,6 +65,7 @@ class UserMessage extends Model
         $system_message1 = db::name('system_message')
             ->field('id')
             ->where($map)
+            ->where(['delete_time' => 0])
             ->where('FIND_IN_SET(:user_id, receiving_id)', ['user_id' => $uid])
             ->select();