diff --git a/website/docs/en/guide/optimization/profile.mdx b/website/docs/en/guide/optimization/profile.mdx
index 78126c7cf0f..9c431286437 100644
--- a/website/docs/en/guide/optimization/profile.mdx
+++ b/website/docs/en/guide/optimization/profile.mdx
@@ -84,3 +84,11 @@ To enable `RsdoctorRspackPlugin`, you can refer to the documentation: [Use Rsdoc
 - Usage documentation:
   - For Loader Analysis, refer to [Loader Timeline](https://rsdoctor.dev/guide/usage/loaders-timeline) and [Loader Details](https://rsdoctor.dev/guide/usage/loaders-analysis).
   - For Plugins Analysis, refer to [Plugin Analysis](https://rsdoctor.dev/guide/usage/plugins-analysis).
+
+#### FAQ
+
+**The loader of CssExtractRspackPlugin takes too long**
+
+When using Rsdoctor to analyze the compilation time of Rspack projects, you may find that the loader of [CssExtractRspackPlugin](/plugins/rspack/css-extract-rspack-plugin) takes a long time. For details and reasons, please check:
+
+[> The loader of CssExtractRspackPlugin takes too long](https://rsdoctor.dev/guide/more/faq#the-loader-of-cssextractrspackplugin-takes-too-long)
diff --git a/website/docs/zh/guide/optimization/profile.mdx b/website/docs/zh/guide/optimization/profile.mdx
index 2ada78be639..b38774e34aa 100644
--- a/website/docs/zh/guide/optimization/profile.mdx
+++ b/website/docs/zh/guide/optimization/profile.mdx
@@ -86,3 +86,11 @@ $ RSPACK_PROFILE=ALL rspack build
 - 使用文档：
   - Loader Analysis 使用文档可查看 [Loader Timeline](https://rsdoctor.dev/zh/guide/usage/loaders-timeline) 和 [Loader Details](https://rsdoctor.dev/zh/guide/usage/loaders-analysis)。
   - Plugins Analysis 使用文档可查看 [Plugin Analysis](https://rsdoctor.dev/zh/guide/usage/plugins-analysis)。
+
+#### FAQ
+
+**CssExtractRspackPlugin 的 loader 耗时过长问题**
+
+在使用 Rsdoctor 对 Rspack 项目进行编译耗时分析时，可能会发现 [CssExtractRspackPlugin](/plugins/rspack/css-extract-rspack-plugin) 的 loader 耗时较长，详情及原因请查看：
+
+[> CssExtractRspackPlugin 的 loader 耗时过长问题](https://rsdoctor.dev/zh/guide/more/faq#cssextractrspackplugin-%E7%9A%84-loader-%E8%80%97%E6%97%B6%E8%BF%87%E9%95%BF%E9%97%AE%E9%A2%98)