diff --git a/docs/zh/06-advanced/06-TDgpt/03-preprocess.md b/docs/zh/06-advanced/06-TDgpt/03-preprocess.md
index 62646f6ce0..b470c9204f 100644
--- a/docs/zh/06-advanced/06-TDgpt/03-preprocess.md
+++ b/docs/zh/06-advanced/06-TDgpt/03-preprocess.md
@@ -3,8 +3,6 @@ title: "数据分析预处理"
 sidebar_label: "数据分析预处理"
 ---
 
-## 时序数据分析功能
-
 在针对时序数据进行高级分析之前，首先进行数据的白噪声检查（White Noise Data check, WND）。白噪声时序数据可以简单地认为是随机数构成的时序数据序列，这种类型的序列没有分析的价值，因此会直接返回空的结果。整体的流程如下图所示。
 
 <img src="./pic/activity.png" width="560" alt="流程图" />
diff --git a/docs/zh/06-advanced/06-TDgpt/04-forecast/intro.md b/docs/zh/06-advanced/06-TDgpt/04-forecast/index.md
similarity index 100%
rename from docs/zh/06-advanced/06-TDgpt/04-forecast/intro.md
rename to docs/zh/06-advanced/06-TDgpt/04-forecast/index.md
diff --git a/docs/zh/06-advanced/06-TDgpt/05-anomaly-detection/intro.md b/docs/zh/06-advanced/06-TDgpt/05-anomaly-detection/index.md
similarity index 100%
rename from docs/zh/06-advanced/06-TDgpt/05-anomaly-detection/intro.md
rename to docs/zh/06-advanced/06-TDgpt/05-anomaly-detection/index.md