diff --git a/jero-boot/jero-boot-modules/src/main/java/com/jero/modules/document/service/impl/BussDocumentLibraryEOServiceImpl.java b/jero-boot/jero-boot-modules/src/main/java/com/jero/modules/document/service/impl/BussDocumentLibraryEOServiceImpl.java
index a3d9b12cf..1b04ba374 100644
--- a/jero-boot/jero-boot-modules/src/main/java/com/jero/modules/document/service/impl/BussDocumentLibraryEOServiceImpl.java
+++ b/jero-boot/jero-boot-modules/src/main/java/com/jero/modules/document/service/impl/BussDocumentLibraryEOServiceImpl.java
@@ -704,7 +704,9 @@ public class BussDocumentLibraryEOServiceImpl extends ServiceImpl<BussDocumentLi
             String key = entry.getKey();
             if(personList.contains(key)){
                 String value = (String) entry.getValue();
-                userNameList.addAll(Arrays.asList(value.split(",")));
+                if(StringUtils.isNotBlank(value)){
+                    userNameList.addAll(Arrays.asList(value.split(",")));
+                }
             }
             if(dateMoreList.contains(key) && ObjectUtils.isNotEmpty(entry.getValue())){
                 String value = (String) entry.getValue();