diff --git a/business/jxutils/jxutils.go b/business/jxutils/jxutils.go
index b25a1a73c..75292a136 100644
--- a/business/jxutils/jxutils.go
+++ b/business/jxutils/jxutils.go
@@ -918,15 +918,22 @@ func PKCS5UnPadding(origData []byte) []byte {
 }
 
 //合成水印图
-func MixMatermarkImg(imgWatermark, img string) (imgMix string) {
-	baseURL := base64.URLEncoding.EncodeToString([]byte(imgWatermark))
-	imgUrl := img + "?imageView2/0/q/75|watermark/1/image/" + baseURL + "/dissolve/100/gravity/Center/dx/0/dy/0"
-	if resBinary, _, err := DownloadFileByURL(imgUrl); err == nil {
-		if downloadURL, err := UploadExportContent(resBinary, utils.Int64ToStr(time.Now().Unix())+img[strings.LastIndex(img, "/")+1:len(img)]); err == nil {
-			if err == nil {
-				return downloadURL
+func MixMatermarkImg(imgWatermark, img string, exPrefixBegin, exPrefixEnd *time.Time) (imgMix string) {
+	if exPrefixBegin != nil && exPrefixEnd != nil {
+		if utils.Time2Date(time.Now().Add(6*time.Hour)).Sub(*exPrefixBegin) >= 0 && utils.Time2Date(time.Now()).Sub(*exPrefixEnd) <= 0 {
+			baseURL := base64.URLEncoding.EncodeToString([]byte(imgWatermark))
+			imgUrl := img + "?imageView2/0/q/75|watermark/1/image/" + baseURL + "/dissolve/100/gravity/Center/dx/0/dy/0"
+			if resBinary, _, err := DownloadFileByURL(imgUrl); err == nil {
+				if downloadURL, err := UploadExportContent(resBinary, utils.Int64ToStr(time.Now().Unix())+img[strings.LastIndex(img, "/")+1:len(img)]); err == nil {
+					if err == nil {
+						return downloadURL
+					}
+				}
 			}
 		}
+		if utils.Time2Date(time.Now().Add(6*time.Hour)).Sub(*exPrefixEnd) > 0 {
+			return imgMix
+		}
 	}
 	return imgMix
 }