diff --git a/CHANGELOG.md b/CHANGELOG.md
index 879860a..884fb92 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
 - 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
+- 修改header图的存储标志位
 
 ## 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/entry/src/main/ets/pages/testImageKnifeHttpRequestHeader.ets b/entry/src/main/ets/pages/testImageKnifeHttpRequestHeader.ets
index 411a411..ae5effa 100644
--- a/entry/src/main/ets/pages/testImageKnifeHttpRequestHeader.ets
+++ b/entry/src/main/ets/pages/testImageKnifeHttpRequestHeader.ets
@@ -56,6 +56,7 @@ struct testImageKnifeHttpRequestHeader {
       loadSrc: 'http://1.94.37.200:7070/AntiTheftChain/downloadImage',
       placeholderSrc: $r('app.media.icon_loading'),
       errorholderSrc: $r('app.media.icon_failed'),
+      signature: new ObjectKey('refer11'),
       headerOption: [this.headerOptions1]
     };
   @State imageKnifeOption2: ImageKnifeOption =
@@ -63,6 +64,7 @@ struct testImageKnifeHttpRequestHeader {
       loadSrc: 'http://1.94.37.200:7070/AntiTheftChain/downloadImage',
       placeholderSrc: $r('app.media.icon_loading'),
       errorholderSrc: $r('app.media.icon_failed'),
+      signature: new ObjectKey('xx22'),
       headerOption: [this.headerOptions2]
     };
 
@@ -70,13 +72,16 @@ struct testImageKnifeHttpRequestHeader {
   load(src: string | image.PixelMap | Resource, type: string, num: number) {
     clearTimeout(timeId)
     let request = new RequestOption()
+    let key: string | null = ''
     if (type == 'error') {
-      request.addHeader('xx', src)
+      key = 'xx'
     } else {
-      request.addHeader('refer', src)
+      key = 'refer'
     }
+    request.addHeader(key, src)
     //清理缓存
-    request.signature = new ObjectKey(new Date().getTime().toString())
+    request.signature = new ObjectKey(key + num)
+    key = null
     request.load(src)
       .addListener({ callback: (err: BusinessError | string, data: ImageKnifeData) => {
         if (data.isPixelMap()) {
diff --git a/library/src/main/ets/components/imageknife/ImageKnifeComponent.ets b/library/src/main/ets/components/imageknife/ImageKnifeComponent.ets
index a74608c..2e16ffb 100644
--- a/library/src/main/ets/components/imageknife/ImageKnifeComponent.ets
+++ b/library/src/main/ets/components/imageknife/ImageKnifeComponent.ets
@@ -267,7 +267,6 @@ export struct ImageKnifeComponent {
       for (let i = 0; i < this.imageKnifeOption.headerOption.length; i++) {
         let headerOptions = this.imageKnifeOption.headerOption[i];
         request.addHeader(headerOptions.key, headerOptions.value);
-        request.signature = new ObjectKey(new Date().getTime().toString())
       }
     }
     if( this.imageKnifeOption.priority != undefined) {