diff --git a/jero-boot/jero-boot-module-certification/src/main/java/com/jero/modules/cert/template/service/impl/ParamsInfoEOServiceImpl.java b/jero-boot/jero-boot-module-certification/src/main/java/com/jero/modules/cert/template/service/impl/ParamsInfoEOServiceImpl.java
index e4a311b2e..7a690c725 100644
--- a/jero-boot/jero-boot-module-certification/src/main/java/com/jero/modules/cert/template/service/impl/ParamsInfoEOServiceImpl.java
+++ b/jero-boot/jero-boot-module-certification/src/main/java/com/jero/modules/cert/template/service/impl/ParamsInfoEOServiceImpl.java
@@ -1409,7 +1409,9 @@ public class ParamsInfoEOServiceImpl extends ServiceImpl<ParamsInfoEOMapper, Par
 			if (ccDtoAfterDistinct.size() < ccDtoList.size()) {
 				// 取差集
 				String reduceOne = ccDtoList.stream()
-						.filter(e->!ccDtoAfterDistinct.contains(e)).map(CertCategoryParamsInfoCnImport::getNioNumber).collect(Collectors.joining(","));
+						.filter(e->!ccDtoAfterDistinct.contains(e))
+						.map(CertCategoryParamsInfoCnImport::getNioNumber).distinct()
+						.collect(Collectors.joining(","));
 				if (StringUtils.isNotBlank(reduceOne)) {
 					if (CutEnum.CN.getValue().equals(cut)) {
 						stringMessage.add("导入数据中NIO编号：" + reduceOne + "下存在重复认证类别；");
@@ -1428,7 +1430,9 @@ public class ParamsInfoEOServiceImpl extends ServiceImpl<ParamsInfoEOMapper, Par
 		if (ccDtoAfterDistinctTwo.size() < certCategoryParamsInfoEOList.size()) {
 			// 取差集
 			String reduceTwo = certCategoryParamsInfoEOList.stream()
-					.filter(e->!ccDtoAfterDistinctTwo.contains(e)).map(CertCategoryParamsInfoCnImport::getNioNumber).collect(Collectors.joining(","));
+					.filter(e->!ccDtoAfterDistinctTwo.contains(e))
+					.map(CertCategoryParamsInfoCnImport::getNioNumber).distinct()
+					.collect(Collectors.joining(","));
 			if (StringUtils.isNotBlank(reduceTwo)) {
 				if (CutEnum.CN.getValue().equals(cut)) {
 					stringMessage.add("导入数据中NIO编号：" + reduceTwo + "下存在重复认证编号；");