diff --git a/docs/document/content/user-manual/shardingsphere-jdbc/yaml-config/rules/readwrite-splitting.cn.md b/docs/document/content/user-manual/shardingsphere-jdbc/yaml-config/rules/readwrite-splitting.cn.md
index d4e55840abb6a..b1fe1c5e03c58 100644
--- a/docs/document/content/user-manual/shardingsphere-jdbc/yaml-config/rules/readwrite-splitting.cn.md
+++ b/docs/document/content/user-manual/shardingsphere-jdbc/yaml-config/rules/readwrite-splitting.cn.md
@@ -51,6 +51,10 @@ rules:
   loadBalancers:
     random:
       type: RANDOM
+# 需要配置单表规则，不然会读不到表
+- !SINGLE
+  tables:
+    - "*.*"
 ```
 
 ## 相关参考