diff --git a/docs-2.0/3.ngql-guide/16.subgraph-and-path/1.get-subgraph.md b/docs-2.0/3.ngql-guide/16.subgraph-and-path/1.get-subgraph.md
index be4a814b655..cfc8ce5061d 100644
--- a/docs-2.0/3.ngql-guide/16.subgraph-and-path/1.get-subgraph.md
+++ b/docs-2.0/3.ngql-guide/16.subgraph-and-path/1.get-subgraph.md
@@ -20,10 +20,15 @@ YIELD [VERTICES AS <vertex_alias>] [, EDGES AS <edge_alias>];
 
 - `YIELD`：定义需要返回的输出。可以仅返回点或边。必须设置别名。
 
+!!! caution
+
+    `GET SUBGRAPH`语句不支持使用`WHERE`子句。
+
 !!! note
 
     `GET SUBGRAPH`语句检索的路径类型为`trail`，即检索的路径只有点可以重复，边不可以重复。详情请参见[路径](../../1.introduction/2.1.path.md)。
 
+
 ## 示例
 
 以下面的示例图进行演示。