diff --git a/docs/assets/option/en/series/pie.md b/docs/assets/option/en/series/pie.md
index cd41cf6c06..7abd7245b5 100644
--- a/docs/assets/option/en/series/pie.md
+++ b/docs/assets/option/en/series/pie.md
@@ -82,7 +82,72 @@ Pie chart inner sector radius. The default value is 0.
 
 #${prefix} cornerRadius(number)
 
-Pie chart sector corner radius. The default value is 0.
+I. Value Description
+- `0`: No corner radius effect, sector edges remain sharp and angular
+- `0.1 - 0.3`: Slight corner radius effect, suitable for most business presentation scenarios
+- `0.4 - 0.7`: Pronounced corner radius effect, creates a more modern look
+- `0.8 - 1.0`: Maximum corner radius effect, sector edges become almost completely smooth
+
+II. Differences between cornerRadius and pie.style.cornerRadius
+1️⃣ Configuration Level Comparison
+
+| Config Item | cornerRadius | pie.style.cornerRadius |
+|------------|-------------|----------------------|
+| Position | Top-level chart config | Inside pie.style config object |
+| Syntax | `cornerRadius: number` | `cornerRadius: number \| Function` |
+
+2️⃣ Feature Comparison
+
+| Feature | cornerRadius | pie.style.cornerRadius |
+|---------|-------------|----------------------|
+| Data Type | Numbers only | Supports numbers and callback functions |
+| Scope | Global uniform | Can control each sector independently |
+| Data Access | Not supported | Can access current sector data |
+| Dynamic Calculation | Not supported | Supports data-driven calculation |
+| Priority | Low | High (overrides global config) |
+
+3️⃣ Application Scenarios
+
+① cornerRadius Suitable Scenarios
+- ✨ When all sectors need uniform corner radius
+- ✨ For simple and straightforward configuration
+- ✨ When performance is a priority
+
+② pie.style.cornerRadius Suitable Scenarios
+- 🎨 Need different corner radius based on data
+- 🎨 Need to highlight specific sectors
+- 🎨 Need interactive corner radius changes
+
+4️⃣ Performance Considerations
+
+① cornerRadius
+✅ Low computation overhead  
+✅ High rendering efficiency  
+✅ Suitable for large datasets
+
+② pie.style.cornerRadius
+⚠️ Callback functions increase computation  
+⚠️ Requires calculation for each sector  
+⚠️ Use cautiously with large datasets
+
+5️⃣ Usage Recommendations
+
+① General Scenarios
+- Prefer using `cornerRadius`
+- Use moderate values (0.1-0.3)
+- Balance visual effects and performance
+
+② Advanced Customization
+- Use `pie.style.cornerRadius` judiciously
+- Avoid overly complex callback logic
+- Be mindful of performance impact
+
+③ Mixed Usage
+- Use `cornerRadius` for base values
+- Use `pie.style.cornerRadius` for exceptions
+- Combine with `padAngle` for optimal visuals
+
+>💡 Tip: In practice, it's recommended to use cornerRadius for uniform corner effects and only use pie.style.cornerRadius when differentiated treatment is necessary.
 
 #${prefix} startAngle(number) = -90
 
diff --git a/docs/assets/option/zh/series/pie.md b/docs/assets/option/zh/series/pie.md
index 18b92f8863..2f50000ef7 100644
--- a/docs/assets/option/zh/series/pie.md
+++ b/docs/assets/option/zh/series/pie.md
@@ -83,7 +83,73 @@ pie: {
 
 #${prefix} cornerRadius(number)
 
-饼图扇区圆角半径。默认值为 0。
+饼图扇区的圆角半径配置，用于控制扇区边缘的圆滑程度。取值范围为 [0-1]，默认值为 0。
+一、取值说明
+- `0`: 完全不应用圆角效果，扇区边缘呈现尖锐的角；
+- `0.1 - 0.3`: 轻微的圆角效果，适合大多数商业展示场景；
+- `0.4 - 0.7`: 明显的圆角效果，使图表看起来更现代化；
+- `0.8 - 1.0`: 最大圆角效果，扇区边缘近似完全圆滑；
+ 
+二、cornerRadius 与 pie.style.cornerRadius 的区别
+1️⃣ 配置层级对比
+
+| 配置项 | cornerRadius | pie.style.cornerRadius |
+|-------|-------------|----------------------|
+| 位置 | 图表配置的顶层属性 | pie.style 配置对象内 |
+| 语法 | `cornerRadius: number` | `cornerRadius: number \| Function` |
+
+2️⃣ 功能特性对比
+
+| 特性 | cornerRadius | pie.style.cornerRadius |
+|-----|-------------|----------------------|
+| 数据类型 | 仅支持数值 | 支持数值和回调函数 |
+| 作用范围 | 全局统一 | 可独立控制每个扇区 |
+| 数据访问 | 不支持 | 可访问当前扇区数据 |
+| 动态计算 | 不支持 | 支持根据数据动态计算 |
+| 优先级 | 低 | 高（覆盖全局配置） |
+
+3️⃣ 应用场景方面
+
+① cornerRadius 适用场景
+- ✨ 所有扇区需要统一的圆角效果
+- ✨ 追求简单直观的配置方式
+- ✨ 对性能要求较高的场景
+
+② pie.style.cornerRadius 适用场景
+- 🎨 需要根据数据设置不同圆角
+- 🎨 需要突出显示特定扇区
+- 🎨 需要实现交互式圆角变化
+
+4️⃣ 性能考虑方面
+
+① cornerRadius
+✅ 计算开销小  
+✅ 渲染效率高  
+✅ 适合大数据量场景
+
+② pie.style.cornerRadius
+⚠️ 回调函数会增加计算量  
+⚠️ 需要为每个扇区单独计算  
+⚠️ 数据量大时需谨慎使用
+
+5️⃣ 使用建议方面
+
+①一般场景
+- 优先使用 `cornerRadius` 
+- 设置适中的值（0.1-0.3）
+- 确保视觉效果和性能的平衡
+
+②高级定制
+- 合理使用 `pie.style.cornerRadius`
+- 避免过于复杂的回调逻辑
+- 注意性能影响
+
+③混合使用
+- 使用 `cornerRadius` 设置基础值
+- 用 `pie.style.cornerRadius` 处理特例
+- 配合 `padAngle` 优化视觉效果
+
+>💡提示：在实际应用中，建议优先使用 cornerRadius 配置统一的圆角效果，只在确实需要差异化处理时才使用 pie.style.cornerRadius。
 
 #${prefix} startAngle(number) = -90