diff --git a/packages/opendesign/src/collapse/__docs__/index.en-US.md b/packages/opendesign/src/collapse/__docs__/index.en-US.md
index 664e9ff8c189605d12935c63d44fb1cf6d3f41ba..8838cee11d83147d7d0e9edd59f2989b014f3c92 100644
--- a/packages/opendesign/src/collapse/__docs__/index.en-US.md
+++ b/packages/opendesign/src/collapse/__docs__/index.en-US.md
@@ -3,6 +3,7 @@ sidebar: OCollapse
 ---
 
 # OCollapse
+
 ## Demo
 
 <!-- @case CollapseAccordion -->
@@ -11,5 +12,28 @@ sidebar: OCollapse
 
 ## API
 
+### CSS Variables (OCollapse)
+
+| CSS Variable | Description |
+| --- | --- |
+| \-\-collapse-radius | Border radius size |
+| \-\-collapse-bg-color | Background color |
+| \-\-collapse-padding | Padding |
+| \-\-collapse-division-color | Divider color |
+
+### CSS Variables (OCollapseItem)
+
+| CSS Variable | Description |
+| --- | --- |
+| \-\-collapse-item-header-padding | Header area padding |
+| \-\-collapse-item-title-color | Title text color |
+| \-\-collapse-item-title-text-size | Title text size |
+| \-\-collapse-item-title-text-height | Title line height |
+| \-\-collapse-item-body-text-size | Content text size |
+| \-\-collapse-item-body-text-height | Content line height |
+| \-\-collapse-item-icon-color | Expand icon color |
+| \-\-collapse-item-icon-size | Expand icon size |
+| \-\-collapse-item-gap | Margin between content area and bottom divider |
+
 <!-- @api OCollapse -->
 <!-- @api OCollapseItem -->
diff --git a/packages/opendesign/src/collapse/__docs__/index.zh-CN.md b/packages/opendesign/src/collapse/__docs__/index.zh-CN.md
index 89deedc5def4a093ee08593bc36838cf80034cee..2055127234decc3ce67f3178db54194b1953a7b0 100644
--- a/packages/opendesign/src/collapse/__docs__/index.zh-CN.md
+++ b/packages/opendesign/src/collapse/__docs__/index.zh-CN.md
@@ -3,6 +3,7 @@ sidebar: OCollapse 折叠面板
 ---
 
 # OCollapse 折叠面板
+
 ## 示例
 
 <!-- @case CollapseAccordion -->
@@ -11,5 +12,28 @@ sidebar: OCollapse 折叠面板
 
 ## API
 
+### CSS 变量（OCollapse）
+
+| CSS 变量 | 描述 |
+| --- | --- |
+| \-\-collapse-radius | 圆角大小 |
+| \-\-collapse-bg-color | 背景色 |
+| \-\-collapse-padding | 内边距 |
+| \-\-collapse-division-color | 分割线颜色 |
+
+### CSS 变量（OCollapseItem）
+
+| CSS 变量 | 描述 |
+| --- | --- |
+| \-\-collapse-item-header-padding | 标题区域内边距 |
+| \-\-collapse-item-title-color | 标题文字颜色 |
+| \-\-collapse-item-title-text-size | 标题文字大小 |
+| \-\-collapse-item-title-text-height | 标题行高 |
+| \-\-collapse-item-body-text-size | 内容文字大小 |
+| \-\-collapse-item-body-text-height | 内容行高 |
+| \-\-collapse-item-icon-color | 展开图标颜色 |
+| \-\-collapse-item-icon-size | 展开图标大小 |
+| \-\-collapse-item-gap | 内容区域与底部分割线的外边距 |
+
 <!-- @api OCollapse -->
 <!-- @api OCollapseItem -->