diff --git a/docs/index.rst b/docs/index.rst
index 30e5bf21..5863db2d 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -13,6 +13,7 @@ vn.py项目文档
    data_recoder.md
    algo_trader.md
    script_trader.md
+   spread_trading.md
    rpc_service.md
    gateway.md
    database.md