diff --git a/src/main/java/com/chinaunicom/mall/ebtp/extend/signature/service/impl/ExpertSignatureServiceImpl.java b/src/main/java/com/chinaunicom/mall/ebtp/extend/signature/service/impl/ExpertSignatureServiceImpl.java
index 6b756b6..ee5d246 100644
--- a/src/main/java/com/chinaunicom/mall/ebtp/extend/signature/service/impl/ExpertSignatureServiceImpl.java
+++ b/src/main/java/com/chinaunicom/mall/ebtp/extend/signature/service/impl/ExpertSignatureServiceImpl.java
@@ -171,9 +171,12 @@ public class ExpertSignatureServiceImpl implements ExpertSignatureService {
         }
         List<PictureRenderData> pics = new ArrayList<>();
         signature.getExperts().forEach(l -> {
+            if (l.getExpertSign().contains("data:image/png;base64,")) {
+                l.setExpertSign(l.getExpertSign().replace("data:image/png;base64,", ""));
+            }
             String img = imgPath + l.getExpertId() + ".png";
 
-            base64ToImage(l.getExpertSign().replace("data:image/png;base64,", ""), img);
+            base64ToImage(l.getExpertSign(), img);
             pics.add(new PictureRenderData(130, 100, img));
         });