diff --git a/deploy/sql/头程数据库统一增量-MySQL8.sql b/deploy/sql/头程数据库统一增量-MySQL8.sql
index 6f92303cc..a29e85c56 100644
--- a/deploy/sql/头程数据库统一增量-MySQL8.sql
+++ b/deploy/sql/头程数据库统一增量-MySQL8.sql
@@ -10428,6 +10428,26 @@ CREATE TABLE IF NOT EXISTS fl_carrier_schedule_query_operation (
   CONSTRAINT chk_carrier_schedule_operation_status CHECK (status IN ('PROCESSING','SUCCESS'))
 ) ENGINE=InnoDB COMMENT='船司查询写操作幂等与请求摘要';
 
+-- CREATE TABLE IF NOT EXISTS 不会更新已有表的 CHECK。历史开发库仍可能只允许
+-- CREATE/ATTEMPT/MANUAL_RESULT，必须在人工节点和自动节点写入前收敛为当前动作集。
+DROP PROCEDURE IF EXISTS migrate_carrier_schedule_history_action_check;
+DELIMITER $$
+CREATE PROCEDURE migrate_carrier_schedule_history_action_check()
+BEGIN
+  IF EXISTS (SELECT 1 FROM information_schema.table_constraints
+      WHERE constraint_schema=DATABASE() AND table_name='fl_carrier_schedule_query_history'
+        AND constraint_name='chk_carrier_schedule_history_action' AND constraint_type='CHECK') THEN
+    ALTER TABLE fl_carrier_schedule_query_history DROP CHECK chk_carrier_schedule_history_action;
+  END IF;
+  ALTER TABLE fl_carrier_schedule_query_history
+    ADD CONSTRAINT chk_carrier_schedule_history_action CHECK
+      (action IN ('CREATE','AUTO_CREATE','MANUAL_RESULT','MANUAL_NODE','NODE_OBSERVED',
+        'EXCEPTION_OBSERVED','PROVIDER_QUERY','STOP'));
+END$$
+DELIMITER ;
+CALL migrate_carrier_schedule_history_action_check();
+DROP PROCEDURE IF EXISTS migrate_carrier_schedule_history_action_check;
+
 DROP TRIGGER IF EXISTS trg_carrier_schedule_query_before_insert;
 DELIMITER $$
 CREATE TRIGGER trg_carrier_schedule_query_before_insert BEFORE INSERT ON fl_carrier_schedule_query FOR EACH ROW
diff --git a/firstleg/src/main/resources/db/phase3-carrier-schedule-query-schema.sql b/firstleg/src/main/resources/db/phase3-carrier-schedule-query-schema.sql
index f5bf83b25..f37916125 100644
--- a/firstleg/src/main/resources/db/phase3-carrier-schedule-query-schema.sql
+++ b/firstleg/src/main/resources/db/phase3-carrier-schedule-query-schema.sql
@@ -181,6 +181,26 @@ CREATE TABLE IF NOT EXISTS fl_carrier_schedule_query_operation (
   CONSTRAINT chk_carrier_schedule_operation_status CHECK (status IN ('PROCESSING','SUCCESS'))
 ) ENGINE=InnoDB COMMENT='船司查询写操作幂等与请求摘要';
 
+-- CREATE TABLE IF NOT EXISTS 不会更新已有表的 CHECK。历史开发库仍可能只允许
+-- CREATE/ATTEMPT/MANUAL_RESULT，必须在人工节点和自动节点写入前收敛为当前动作集。
+DROP PROCEDURE IF EXISTS migrate_carrier_schedule_history_action_check;
+DELIMITER $$
+CREATE PROCEDURE migrate_carrier_schedule_history_action_check()
+BEGIN
+  IF EXISTS (SELECT 1 FROM information_schema.table_constraints
+      WHERE constraint_schema=DATABASE() AND table_name='fl_carrier_schedule_query_history'
+        AND constraint_name='chk_carrier_schedule_history_action' AND constraint_type='CHECK') THEN
+    ALTER TABLE fl_carrier_schedule_query_history DROP CHECK chk_carrier_schedule_history_action;
+  END IF;
+  ALTER TABLE fl_carrier_schedule_query_history
+    ADD CONSTRAINT chk_carrier_schedule_history_action CHECK
+      (action IN ('CREATE','AUTO_CREATE','MANUAL_RESULT','MANUAL_NODE','NODE_OBSERVED',
+        'EXCEPTION_OBSERVED','PROVIDER_QUERY','STOP'));
+END$$
+DELIMITER ;
+CALL migrate_carrier_schedule_history_action_check();
+DROP PROCEDURE IF EXISTS migrate_carrier_schedule_history_action_check;
+
 DROP TRIGGER IF EXISTS trg_carrier_schedule_query_before_insert;
 DELIMITER $$
 CREATE TRIGGER trg_carrier_schedule_query_before_insert BEFORE INSERT ON fl_carrier_schedule_query FOR EACH ROW
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/portschedule/repository/CarrierScheduleQuerySqlContractTest.java b/firstleg/src/test/java/com/baiyue/firstleg/portschedule/repository/CarrierScheduleQuerySqlContractTest.java
index ba178fd07..b7e0d4d7e 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/portschedule/repository/CarrierScheduleQuerySqlContractTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/portschedule/repository/CarrierScheduleQuerySqlContractTest.java
@@ -34,6 +34,10 @@ class CarrierScheduleQuerySqlContractTest {
             .contains("DISCHARGED_FROM_VESSEL")
             .contains("PICKED_UP','EMPTY_RETURNED")
             .contains("CUSTOMS_HOLD','TERMINAL_HOLD','DOCUMENT_HOLD','UNKNOWN_HOLD")
+            .contains("CREATE PROCEDURE migrate_carrier_schedule_history_action_check()")
+            .contains("DROP CHECK chk_carrier_schedule_history_action")
+            .contains("'MANUAL_NODE','NODE_OBSERVED'")
+            .contains("'EXCEPTION_OBSERVED','PROVIDER_QUERY','STOP'")
             .contains("provider_event_id")
             .contains("'PUBLIC_FORM','PUBLIC_WEB_PROXY','PUBLIC_HTML','HCAPTCHA','OFFICIAL_API'")
             .contains("lease_owner")
@@ -86,6 +90,10 @@ class CarrierScheduleQuerySqlContractTest {
             .contains("SET @carrier_schedule_now = CONVERT_TZ(UTC_TIMESTAMP(3),'+00:00','+08:00')")
             .contains("SET @carrier_schedule_next = CASE")
             .contains("CREATE PROCEDURE ensure_carrier_schedule_retry_check()")
+            .contains("CREATE PROCEDURE migrate_carrier_schedule_history_action_check()")
+            .contains("DROP CHECK chk_carrier_schedule_history_action")
+            .contains("'MANUAL_NODE','NODE_OBSERVED'")
+            .contains("'EXCEPTION_OBSERVED','PROVIDER_QUERY','STOP'")
             .contains("ADD CONSTRAINT chk_carrier_schedule_query_attempt CHECK (attempt_count BETWEEN 0 AND 3)")
             .contains("统一迁移失败：船司查询固定槽位字段、索引或尝试次数约束不完整")
             .doesNotContain("DROP CHECK chk_carrier_schedule_query_attempt")