diff --git a/src/com/engine/resumestorage/service/impl/ResumeIdentifyServiceImpl.java b/src/com/engine/resumestorage/service/impl/ResumeIdentifyServiceImpl.java
index 0c4cf9c..e3038fa 100644
--- a/src/com/engine/resumestorage/service/impl/ResumeIdentifyServiceImpl.java
+++ b/src/com/engine/resumestorage/service/impl/ResumeIdentifyServiceImpl.java
@@ -636,6 +636,9 @@ public class ResumeIdentifyServiceImpl extends Service implements ResumeIdentify
      * @return
      */
     private String getFormatDate(String dateStr) {
+        if(StringUtils.isBlank(dateStr)){
+            return null;
+        }
         dateStr = dateStr.replace(".", "-");
         if (dateStr.length() == 7) {
             return dateStr + "-01";