diff --git a/blade-service/blade-transport/src/main/java/org/springblade/transport/service/impl/ContractManageServiceImpl.java b/blade-service/blade-transport/src/main/java/org/springblade/transport/service/impl/ContractManageServiceImpl.java
index ec25728e..4a01aa0c 100644
--- a/blade-service/blade-transport/src/main/java/org/springblade/transport/service/impl/ContractManageServiceImpl.java
+++ b/blade-service/blade-transport/src/main/java/org/springblade/transport/service/impl/ContractManageServiceImpl.java
@@ -332,6 +332,8 @@ public class ContractManageServiceImpl extends BaseServiceImpl<ContractManageMap
 		source.setBillingPlanJson(request.getBillingPlanJson()); source.setSettlementRuleJson(request.getSettlementRuleJson()); source.setPreSettlementConfigJson(request.getPreSettlementConfigJson()); source.setFormalSettlementConfigJson(request.getFormalSettlementConfigJson()); source.setPaymentRatioJson(request.getPaymentRatioJson());
 		source.setContractFileJson(request.getContractFileJson()); source.setAttachmentsJson(request.getAttachmentsJson());
 		source.setChangeAttachmentsJson(TransportBusinessSupport.trimToNull(request.getChangeAttachmentsJson()));
+		// 高风险/黑名单客商管控：变更提交同样必须携带特批附件（与新增/暂存/转正式一致，外部客商，内部组织默认无风险）
+		validateSpecExplanationOnSubmit(source);
 		Map<String, Object> afterData = buildContractChangeSnapshot(source);
 		retainChangedSnapshotFields(beforeData, afterData);
 		source.setApprovalStatus(STATUS_CHANGE_REVIEWING);
diff --git a/doc/sql/transport/blade_contract_attachment_type_dict_20261013.sql b/doc/sql/transport/blade_contract_attachment_type_dict_20261013.sql
new file mode 100644
index 00000000..b3d8e9ba
--- /dev/null
+++ b/doc/sql/transport/blade_contract_attachment_type_dict_20261013.sql
@@ -0,0 +1,39 @@
+-- 合同附件类型业务字典（contract_attachment_type）：合同文件/双章归档文件/特批附件。
+-- 后端高风险/黑名单客商提交校验按 fileType=特批附件 精确匹配（HcsSyncConstant#ATTACHMENT_TYPE_SPEC_EXPLANATION），缺字典会导致无法上传特批附件。
+-- 本地环境曾走界面新增，未沉淀脚本；本脚本幂等可重复执行，已存在的项跳过。
+
+-- ① 字典父项：合同附件类型
+INSERT INTO blade_dict_biz (id, tenant_id, parent_id, code, dict_key, dict_value, sort, remark, is_sealed, status, is_deleted)
+SELECT 2099691747182096386, '000000', 0, 'contract_attachment_type', '-1', '合同附件类型', 1, NULL, 0, 1, 0
+WHERE NOT EXISTS (
+  SELECT 1 FROM blade_dict_biz
+  WHERE code = 'contract_attachment_type' AND dict_key = '-1' AND tenant_id = '000000' AND is_deleted = 0
+);
+
+-- ② 子项：parent_id 动态取父项ID，兼容各环境父项已单独创建的情况
+INSERT INTO blade_dict_biz (id, tenant_id, parent_id, code, dict_key, dict_value, sort, remark, is_sealed, status, is_deleted)
+SELECT 2099691808217608194, '000000',
+  (SELECT id FROM blade_dict_biz WHERE code = 'contract_attachment_type' AND dict_key = '-1' AND tenant_id = '000000' AND is_deleted = 0 LIMIT 1),
+  'contract_attachment_type', '合同文件', '合同文件', 1, NULL, 0, 1, 0
+WHERE NOT EXISTS (
+  SELECT 1 FROM blade_dict_biz
+  WHERE code = 'contract_attachment_type' AND dict_key = '合同文件' AND tenant_id = '000000' AND is_deleted = 0
+);
+
+INSERT INTO blade_dict_biz (id, tenant_id, parent_id, code, dict_key, dict_value, sort, remark, is_sealed, status, is_deleted)
+SELECT 2099691889775849473, '000000',
+  (SELECT id FROM blade_dict_biz WHERE code = 'contract_attachment_type' AND dict_key = '-1' AND tenant_id = '000000' AND is_deleted = 0 LIMIT 1),
+  'contract_attachment_type', '双章归档文件', '双章归档文件', 1, NULL, 0, 1, 0
+WHERE NOT EXISTS (
+  SELECT 1 FROM blade_dict_biz
+  WHERE code = 'contract_attachment_type' AND dict_key = '双章归档文件' AND tenant_id = '000000' AND is_deleted = 0
+);
+
+INSERT INTO blade_dict_biz (id, tenant_id, parent_id, code, dict_key, dict_value, sort, remark, is_sealed, status, is_deleted)
+SELECT 2099691980955824130, '000000',
+  (SELECT id FROM blade_dict_biz WHERE code = 'contract_attachment_type' AND dict_key = '-1' AND tenant_id = '000000' AND is_deleted = 0 LIMIT 1),
+  'contract_attachment_type', '特批附件', '特批附件', 1, NULL, 0, 1, 0
+WHERE NOT EXISTS (
+  SELECT 1 FROM blade_dict_biz
+  WHERE code = 'contract_attachment_type' AND dict_key = '特批附件' AND tenant_id = '000000' AND is_deleted = 0
+);