diff --git a/tidb-lightning/tidb-lightning-tidb-backend.md b/tidb-lightning/tidb-lightning-tidb-backend.md
index ec7e3820cce76..0014172d96bf0 100644
--- a/tidb-lightning/tidb-lightning-tidb-backend.md
+++ b/tidb-lightning/tidb-lightning-tidb-backend.md
@@ -227,6 +227,29 @@ password = ""
 #sql-mode = ""
 ```
 
+</td></tr>
+<tr><td>
+
+```toml
+# [[route-rules]]
+# Table routes
+# pattern-schema = "shard_db_*"
+# pattern-table = "shard_table_*"
+# target-schema = "shard_db"
+# target-table = "shard_table"
+```
+
+</td><td>
+
+```toml
+# [[routes]]
+# Table routes
+# pattern-schema = "shard_db_*"
+# pattern-table = "shard_table_*"
+# target-schema = "shard_db"
+# target-table = "shard_table"
+```
+
 </td></tr>
 </tbody>
 </table>