diff --git a/zh-cn/application-dev/media/dual-channel-preview.md b/zh-cn/application-dev/media/camera-dual-channel-preview.md
similarity index 97%
rename from zh-cn/application-dev/media/dual-channel-preview.md
rename to zh-cn/application-dev/media/camera-dual-channel-preview.md
index e5f29744c4d985085075bb1dabdbdd0bed99eeb4..bc37733fd0a32d9a26c31e208b494535fbf014dd 100644
--- a/zh-cn/application-dev/media/dual-channel-preview.md
+++ b/zh-cn/application-dev/media/camera-dual-channel-preview.md
@@ -11,6 +11,12 @@
 - 暂不支持动态添加流，即不能在没有调用session.stop的情况下，调用addOutput添加流。
 - 对ImageReceiver组件获取到的图像数据处理后，需要将对应的图像Buffer释放，确保Surface的BufferQueue正常轮转。
 
+## 调用流程
+
+双路方案调用流程图建议如下：
+
+![dual-preview-streams-instructions](figures/dual-preview-streams-instructions.png)
+
 ## 开发步骤
 
 1. 导入image接口。
diff --git a/zh-cn/application-dev/media/camera-mode.md b/zh-cn/application-dev/media/camera-mode.md
index 200a3c830d15c9e72c7d3f11782e86596395d519..8e52eae306727aff9c984093009b10833e26fcac 100644
--- a/zh-cn/application-dev/media/camera-mode.md
+++ b/zh-cn/application-dev/media/camera-mode.md
@@ -178,7 +178,7 @@ async function cameraModeCase(context: featureAbility.Context, surfaceId: string
   // 获取支持的美颜类型对应的美颜强度范围
   let beautyRanges: Array<number>;
   try {
-    beautyRanges = portraitSession.getSupportedBeautyRanges(beautyTypes[0]);
+    beautyRanges = portraitSession.getSupportedBeautyRange(beautyTypes[0]);
   } catch (error) {
     let err = error as BusinessError;
     console.error('Failed to get the beauty types ranges. errorCode = ' + err.code);
diff --git a/zh-cn/application-dev/media/figures/dual-preview-streams-instructions.png b/zh-cn/application-dev/media/figures/dual-preview-streams-instructions.png
new file mode 100644
index 0000000000000000000000000000000000000000..9aa278cb9e0834f396f00bc2999ee1c3c737b758
Binary files /dev/null and b/zh-cn/application-dev/media/figures/dual-preview-streams-instructions.png differ