diff --git a/library/src/main/ets/ImageKnifeDispatcher.ets b/library/src/main/ets/ImageKnifeDispatcher.ets
index 139b353..593e7e4 100644
--- a/library/src/main/ets/ImageKnifeDispatcher.ets
+++ b/library/src/main/ets/ImageKnifeDispatcher.ets
@@ -359,7 +359,7 @@ export class ImageKnifeDispatcher {
 
     let pixelmap = requestJobResult.pixelMap;
     if (pixelmap === undefined) {
-      LogUtil.error('ImageKnife_DataTime_getAndShowImage_CallBack.pixelmap undefined:'+currentRequest.imageKnifeOption.loadSrc + " error: " + requestJobResult.loadFail)
+      LogUtil.error('ImageKnife_DataTime_getAndShowImage_CallBack.pixelmap failed:'+currentRequest.imageKnifeOption.loadSrc + " error: " + requestJobResult.loadFail)
       requestList.forEach((requestWithSource: ImageKnifeRequestWithSource) => {
         requestWithSource.request.requestState = ImageKnifeRequestState.ERROR
         this.executingJobMap.remove(memoryKey);
@@ -492,6 +492,12 @@ export class ImageKnifeDispatcher {
 
   dispatchNextJob() {
     LogUtil.log('ImageKnife_DataTime_dispatchNextJob.start')
+
+    // 主图和错误图并发加载时，以及主图加载失败后立即加载错误图，可能会导致短时间内并发数超过maxRequests，故此处减少响应的并发
+    if (this.executingJobMap.length >= this.maxRequests) {
+      return
+    }
+
     while (true) {
       let request = this.jobQueue.pop()
       if (request === undefined) {