diff --git a/jero-boot/jero-boot-modules/src/main/java/com/jero/modules/cert/collect/service/impl/ParamsCollectManifestEOServiceImpl.java b/jero-boot/jero-boot-modules/src/main/java/com/jero/modules/cert/collect/service/impl/ParamsCollectManifestEOServiceImpl.java
index 93fb62838..e41696c0e 100644
--- a/jero-boot/jero-boot-modules/src/main/java/com/jero/modules/cert/collect/service/impl/ParamsCollectManifestEOServiceImpl.java
+++ b/jero-boot/jero-boot-modules/src/main/java/com/jero/modules/cert/collect/service/impl/ParamsCollectManifestEOServiceImpl.java
@@ -3961,7 +3961,11 @@ public class ParamsCollectManifestEOServiceImpl extends ServiceImpl<ParamsCollec
 				}
 			}
 
-			references_col = references_colSb.substring(0,references_colSb.length()-1);
+			if(StringUtils.isNotEmpty(references_colSb)){
+				references_col = references_colSb.substring(0,references_colSb.length()-1);
+			}else {
+				references_col = references_colSb.toString();
+			}
 
 			record1.put("references_col",references_col);