diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3f386bf..d62c1a5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,8 @@
 ## 2.2.0-rc.2
 - ImageKnife支持heic图片修改demo，按钮控制组件是否展示
 - ImageKnife控制可视化区域图片
+- 修复占位图、错误图、重试图从内存获取之后进入子线程导致内存泄露
+- ImageKnifeComponent组件key属性改为id属性
 
 ## 2.2.0-rc.1
 - 修改ImageKnife跳过网络,点击默认,图片没有传入宽高,无显示bug
diff --git a/library/src/main/ets/components/imageknife/ImageKnife.ets b/library/src/main/ets/components/imageknife/ImageKnife.ets
index 040ab4d..3f91422 100644
--- a/library/src/main/ets/components/imageknife/ImageKnife.ets
+++ b/library/src/main/ets/components/imageknife/ImageKnife.ets
@@ -612,15 +612,15 @@ export class ImageKnife {
     let retryholderCache = this.memoryCacheProxy.loadMemoryCache(request.retryholderCacheKey, request.isCacheable);
     let errorholderCacheKey = this.memoryCacheProxy.loadMemoryCache(request.errorholderCacheKey, request.isCacheable);
 
-    if (usageType == Constants.PLACE_HOLDER && placeholderCache && !mainCache && !retryholderCache && !errorholderCacheKey) {
+    if (usageType == Constants.PLACE_HOLDER && placeholderCache) {
       LogUtil.info("imageknife load placeholder from MemoryCache")
       request.placeholderOnComplete(placeholderCache);
       return;
-    } else if (usageType == Constants.RETRY_HOLDER && retryholderCache && !mainCache && !errorholderCacheKey) {
+    } else if (usageType == Constants.RETRY_HOLDER && retryholderCache) {
       LogUtil.info("imageknife load retryholder from MemoryCache")
       request.retryholderOnComplete(retryholderCache);
       return;
-    } else if (usageType == Constants.ERROR_HOLDER && errorholderCacheKey && !mainCache) {
+    } else if (usageType == Constants.ERROR_HOLDER && errorholderCacheKey) {
       LogUtil.info("imageknife load errorholder from MemoryCache")
       request.errorholderOnComplete(errorholderCacheKey);
       return;
diff --git a/library/src/main/ets/components/imageknife/ImageKnifeComponent.ets b/library/src/main/ets/components/imageknife/ImageKnifeComponent.ets
index caf12cf..a74608c 100644
--- a/library/src/main/ets/components/imageknife/ImageKnifeComponent.ets
+++ b/library/src/main/ets/components/imageknife/ImageKnifeComponent.ets
@@ -119,7 +119,7 @@ export struct ImageKnifeComponent {
 
   build() {
     Canvas(this.context)
-      .key(this.keyCanvas.keyId)
+      .id(this.keyCanvas.keyId)
       .width((this.imageKnifeOption!=undefined && this.imageKnifeOption.mainScaleType!= undefined && this.imageKnifeOption.mainScaleType == ScaleType.AUTO_WIDTH )? this.currentSize.width:'100%')
       .height((this.imageKnifeOption!=undefined && this.imageKnifeOption.mainScaleType!= undefined && this.imageKnifeOption.mainScaleType == ScaleType.AUTO_HEIGHT )? this.currentSize.height:'100%')
       .renderFit(RenderFit.RESIZE_FILL)