diff --git a/mhd-common/mhd-common-core/src/main/java/com/mhd/common/core/domain/thirdparty/MdmMerchantSyncFilter.java b/mhd-common/mhd-common-core/src/main/java/com/mhd/common/core/domain/thirdparty/MdmMerchantSyncFilter.java
index c5ed5f366..e6b62e6b5 100644
--- a/mhd-common/mhd-common-core/src/main/java/com/mhd/common/core/domain/thirdparty/MdmMerchantSyncFilter.java
+++ b/mhd-common/mhd-common-core/src/main/java/com/mhd/common/core/domain/thirdparty/MdmMerchantSyncFilter.java
@@ -101,7 +101,7 @@ public final class MdmMerchantSyncFilter {
         if (!isCustomer(record)) {
             return SkipReason.NOT_CUSTOMER;
         }
-        if (!belongsToOrg(record.getDesc24(), orgNcCode, syncOrganizationId, topOrganizationId)) {
+        if (StringUtils.isNotEmpty(orgNcCode) && !orgNcCode.equals(trim(record.getCode()))) {
             return SkipReason.ORG_MISMATCH;
         }
         if (StringUtils.isEmpty(trim(record.getDesc1()))) {
diff --git a/mhd_thrid_party/src/main/java/com/linke/thirdParty/application/server/MdmMasterDataApplicationService.java b/mhd_thrid_party/src/main/java/com/linke/thirdParty/application/server/MdmMasterDataApplicationService.java
index fe8a28f10..7d2164e26 100644
--- a/mhd_thrid_party/src/main/java/com/linke/thirdParty/application/server/MdmMasterDataApplicationService.java
+++ b/mhd_thrid_party/src/main/java/com/linke/thirdParty/application/server/MdmMasterDataApplicationService.java
@@ -50,7 +50,7 @@ public class MdmMasterDataApplicationService {
     }
 
     /**
-     * MDM 对 DESC24 条件未严格过滤，按 orgNcCode 在应用侧二次过滤并修正分页描述。
+     * 按组织NC编码匹配客商CODE，过滤无关数据并修正分页描述。
      */
     private MdmMerchantQueryResultDTO applyOrgFilter(MdmMerchantQueryDTO queryDTO, MdmMerchantQueryResultDTO result) {
         if (result == null || StringUtils.isEmpty(queryDTO.getOrgNcCode())
@@ -60,14 +60,12 @@ public class MdmMasterDataApplicationService {
         String orgNcCode = queryDTO.getOrgNcCode().trim();
         int rawCount = result.getDataInfo().size();
         List<MdmMerchantRecordDTO> filtered = result.getDataInfo().stream()
-                .filter(record -> MdmMerchantSyncFilter.belongsToOrg(
-                        record.getDesc24(), orgNcCode,
-                        queryDTO.getSyncOrganizationId(), queryDTO.getTopOrganizationId()))
+                .filter(record -> orgNcCode.equals(record.getCode()))
                 .collect(Collectors.toList());
         result.setDataInfo(filtered);
         if (rawCount != filtered.size()) {
             String note = String.format(
-                    "（MDM原始%d条，按DESC24=%s或南光本组织空DESC24过滤后%d条；MDM总条数totalNumber为未过滤全库统计）",
+                    "（MDM原始%d条，按CODE=%s过滤后%d条；MDM总条数totalNumber为未过滤全库统计）",
                     rawCount, orgNcCode, filtered.size());
             result.setDesc(StringUtils.isEmpty(result.getDesc()) ? note : result.getDesc() + note);
             log.info("MDM客商查询应用侧过滤 orgNcCode={}, rawPageSize={}, filteredPageSize={}, mdmTotalNumber={}",
@@ -111,9 +109,6 @@ public class MdmMasterDataApplicationService {
 
     private String buildRequestBody(MdmMerchantQueryDTO queryDTO) {
         JSONObject dataInfoItem = new JSONObject();
-        if (StringUtils.isNotEmpty(queryDTO.getOrgNcCode())) {
-            dataInfoItem.put("DESC24", queryDTO.getOrgNcCode());
-        }
         if (StringUtils.isNotEmpty(queryDTO.getLastModifyRecordTime())) {
             dataInfoItem.put("LASTMODIFYRECORDTIME", queryDTO.getLastModifyRecordTime());
         }