diff --git a/docs/index.md b/docs/index.md
index 8b60718b..8f152972 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -81,5 +81,9 @@
 * [交易接口](gateway.md)
 
 * [RPC应用](rpc.md)
+
+* [配置数据库](database.md)
+  * [SQLite](database.md#SQLite)
+  * [SQL(MySQL,PostgreSQL)](database.md#SQL(MySQL,PostgreSQL))
+  * [MongoDB](database.md#MongoDB)
 * [贡献代码](contribution.md)
-* [配置数据库](database.md)
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