diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/dao/PlatformChannelMapper.java b/src/main/java/com/genersoft/iot/vmp/gb28181/dao/PlatformChannelMapper.java
index cb5145351..a6cd34e9b 100755
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/dao/PlatformChannelMapper.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/dao/PlatformChannelMapper.java
@@ -551,7 +551,7 @@ public interface PlatformChannelMapper {
 
     @Select("<script>" +
             " select " +
-            "    wpgc.platform_id as platform_id" +
+            "    wpgc.platform_id as platform_id,\n" +
             "    wdc.id as gb_id,\n" +
             "    wdc.data_type,\n" +
             "    wdc.data_device_id,\n" +
diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/session/CatalogDataManager.java b/src/main/java/com/genersoft/iot/vmp/gb28181/session/CatalogDataManager.java
index c5a53b424..2723eedce 100755
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/session/CatalogDataManager.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/session/CatalogDataManager.java
@@ -40,6 +40,8 @@ public class CatalogDataManager{
 
     private final Map<String, CatalogData> dataMap = new ConcurrentHashMap<>();
 
+    private final Set<String> syncingDevices = ConcurrentHashMap.newKeySet();
+
     private final Map<String, ReentrantLock> deviceWriteLocks = new ConcurrentHashMap<>();
 
     public ReentrantLock getDeviceWriteLock(String deviceId) {
@@ -73,6 +75,7 @@ public class CatalogDataManager{
         catalogData.setStatus(CatalogData.CatalogDataStatus.ready);
         catalogData.setTime(Instant.now());
         dataMap.put(buildMapKey(device.getDeviceId(),sn), catalogData);
+        syncingDevices.add(device.getDeviceId());
     }
 
     private void deleteRedisKeys(CatalogData catalogData) {
@@ -253,6 +256,7 @@ public class CatalogDataManager{
                     String errorMsg = "同步失败，等待回复超时";
                     catalogData.setErrorMsg(errorMsg);
                     catalogData.setStatus(CatalogData.CatalogDataStatus.end);
+                    syncingDevices.remove(catalogData.getDevice().getDeviceId());
                 }
             }else if (catalogData.getStatus().equals(CatalogData.CatalogDataStatus.runIng)) {
                 boolean complete = catalogData.isComplete();
@@ -285,6 +289,7 @@ public class CatalogDataManager{
                         lock.unlock();
                     }
                     catalogData.setStatus(CatalogData.CatalogDataStatus.end);
+                    syncingDevices.remove(deviceId);
                 }
             }else {
                 if (catalogData.getTime().isBefore(instantBefore30S)) {
@@ -294,6 +299,7 @@ public class CatalogDataManager{
                     if (deviceWriteLocks.containsKey(deviceId)) {
                         deviceWriteLocks.remove(deviceId);
                     }
+                    syncingDevices.remove(deviceId);
                     deleteRedisKeys(catalogData);
                 }
             }
@@ -317,6 +323,16 @@ public class CatalogDataManager{
         catalogData.setStatus(CatalogData.CatalogDataStatus.end);
         catalogData.setErrorMsg(errorMsg);
         catalogData.setTime(Instant.now());
+        syncingDevices.remove(deviceId);
+    }
+
+    public boolean isSyncing(String deviceId) {
+        return syncingDevices.contains(deviceId);
+    }
+
+    public boolean isEnd(String deviceId, int sn) {
+        CatalogData catalogData = dataMap.get(buildMapKey(deviceId, sn));
+        return catalogData != null && catalogData.getStatus() == CatalogData.CatalogDataStatus.end;
     }
 
     public int size(String deviceId, int sn) {
diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/InviteRequestProcessor.java b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/InviteRequestProcessor.java
index a0529b820..6135d80c7 100755
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/InviteRequestProcessor.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/InviteRequestProcessor.java
@@ -174,8 +174,9 @@ public class InviteRequestProcessor extends SIPRequestProcessorParent implements
                         // 点播成功， TODO 可以在此处检测cancel命令是否存在，存在则不发送
                         if (userSetting.getUseCustomSsrcForParentInvite()) {
                             // 上级平台点播时不使用上级平台指定的ssrc，使用自定义的ssrc，参考国标文档-点播外域设备媒体流SSRC处理方式
-                            finalInviteInfo.setSsrc(sendSsrcFactory.getSendSsrc(
-                                    "Play".equalsIgnoreCase(finalInviteInfo.getSessionName()) ? "0" : "1"));
+                            String sendSsrc = sendSsrcFactory.getSendSsrc(
+                                    "Play".equalsIgnoreCase(finalInviteInfo.getSessionName()) ? "0" : "1");
+                            finalInviteInfo.setSsrc(sendSsrc);
                         }
                         // 构建sendRTP内容
                         SendRtpInfo sendRtpItem = sendRtpServerService.createSendRtpInfo(streamInfo.getMediaServer(),
diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/NotifyRequestForCatalogProcessor.java b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/NotifyRequestForCatalogProcessor.java
index 88ee9a3fa..7b5a3d762 100755
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/NotifyRequestForCatalogProcessor.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/NotifyRequestForCatalogProcessor.java
@@ -32,7 +32,6 @@ import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.ConcurrentLinkedQueue;
-import java.util.concurrent.locks.ReentrantLock;
 
 /**
  * SIP命令类型： NOTIFY请求中的目录请求处理
@@ -294,10 +293,11 @@ public class NotifyRequestForCatalogProcessor extends SIPRequestProcessorParent
 		}
 
 		for (Map.Entry<String, List<NotifyCatalogChannel>> entry : grouped.entrySet()) {
-			ReentrantLock lock = catalogDataManager.getDeviceWriteLock(entry.getKey());
-			lock.lock();
-			try {
-				for (NotifyCatalogChannel notifyCatalogChannel : entry.getValue()) {
+			if (catalogDataManager.isSyncing(entry.getKey())) {
+				log.info("[NOTIFY] 设备 {} 正在同步中，跳过本次订阅通知", entry.getKey());
+				continue;
+			}
+			for (NotifyCatalogChannel notifyCatalogChannel : entry.getValue()) {
 					try {
 						switch (notifyCatalogChannel.getType()) {
 							case STATUS_CHANGED:
@@ -330,9 +330,6 @@ public class NotifyRequestForCatalogProcessor extends SIPRequestProcessorParent
 						log.error("[存储收到的通道-异常]类型：{}，编号：{}", notifyCatalogChannel.getType(),
 								notifyCatalogChannel.getChannel().getDeviceId(), e);
 					}
-				}
-			} finally {
-				lock.unlock();
 			}
 		}
 	}
diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/message/response/cmd/CatalogResponseMessageHandler.java b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/message/response/cmd/CatalogResponseMessageHandler.java
index fede05cfa..dfea8760a 100755
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/message/response/cmd/CatalogResponseMessageHandler.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/message/response/cmd/CatalogResponseMessageHandler.java
@@ -3,12 +3,16 @@ package com.genersoft.iot.vmp.gb28181.transmit.event.request.impl.message.respon
 import com.genersoft.iot.vmp.conf.SipConfig;
 import com.genersoft.iot.vmp.gb28181.bean.*;
 import com.genersoft.iot.vmp.gb28181.service.IDeviceChannelService;
+import com.genersoft.iot.vmp.gb28181.service.IGroupService;
+import com.genersoft.iot.vmp.gb28181.service.IRegionService;
 import com.genersoft.iot.vmp.gb28181.session.CatalogDataManager;
 import com.genersoft.iot.vmp.gb28181.transmit.event.request.SIPRequestProcessorParent;
 import com.genersoft.iot.vmp.gb28181.transmit.event.request.impl.message.IMessageHandler;
 import com.genersoft.iot.vmp.gb28181.transmit.event.request.impl.message.response.ResponseMessageHandler;
 import com.genersoft.iot.vmp.utils.Coordtransform;
 import gov.nist.javax.sip.message.SIPRequest;
+
+import java.util.concurrent.locks.ReentrantLock;
 import lombok.extern.slf4j.Slf4j;
 import org.dom4j.DocumentException;
 import org.dom4j.Element;
@@ -44,6 +48,12 @@ public class CatalogResponseMessageHandler extends SIPRequestProcessorParent imp
     @Autowired
     private CatalogDataManager catalogDataCatch;
 
+    @Autowired
+    private IRegionService regionService;
+
+    @Autowired
+    private IGroupService groupService;
+
     @Autowired
     private SipConfig sipConfig;
 
@@ -144,7 +154,34 @@ public class CatalogResponseMessageHandler extends SIPRequestProcessorParent imp
 
                     if (catalogDataCatch.size(device.getDeviceId(), sn) > 0
                             && catalogDataCatch.size(device.getDeviceId(), sn) == catalogDataCatch.sumNum(device.getDeviceId(), sn)) {
-                        catalogDataCatch.setComplete(device.getDeviceId(), sn);
+                        ReentrantLock lock = catalogDataCatch.getDeviceWriteLock(device.getDeviceId());
+                        if (!lock.tryLock()) {
+                            log.info("[同步通道] 设备 {} 正在入库中，跳过重复写入", device.getDeviceId());
+                            return;
+                        }
+                        try {
+                            if (catalogDataCatch.isEnd(device.getDeviceId(), sn)) {
+                                return;
+                            }
+                            List<DeviceChannel> channels = catalogDataCatch.getDeviceChannelList(device.getDeviceId(), sn);
+                            if (!channels.isEmpty()) {
+                                deviceChannelService.resetChannels(device.getId(), channels);
+                            }
+                            List<Region> regions = catalogDataCatch.getRegionList(device.getDeviceId(), sn);
+                            if (regions != null && !regions.isEmpty()) {
+                                regionService.batchAdd(regions);
+                            }
+                            List<Group> groups = catalogDataCatch.getGroupList(device.getDeviceId(), sn);
+                            if (groups != null && !groups.isEmpty()) {
+                                groupService.batchAdd(groups);
+                            }
+                            catalogDataCatch.setChannelSyncEnd(device.getDeviceId(), sn, null);
+                        } catch (Exception e) {
+                            log.warn("[同步通道] 直接入库失败，交由定时器兜底", e);
+                            catalogDataCatch.setComplete(device.getDeviceId(), sn);
+                        } finally {
+                            lock.unlock();
+                        }
                     }
                 }
             }
diff --git a/数据库/2.7.4/更新-mysql-2.7.4.sql b/数据库/2.7.4/更新-mysql-2.7.4.sql
index ace5bc0be..05138d61b 100644
--- a/数据库/2.7.4/更新-mysql-2.7.4.sql
+++ b/数据库/2.7.4/更新-mysql-2.7.4.sql
@@ -202,23 +202,27 @@ DELIMITER ;
 DELIMITER //
 CREATE PROCEDURE `wvp_20260521`()
 BEGIN
-    IF NOT EXISTS (SELECT 1 FROM information_schema.STATISTICS
+    IF NOT EXISTS (SELECT 1
+                   FROM information_schema.STATISTICS
                    WHERE TABLE_SCHEMA = (SELECT DATABASE())
                      AND TABLE_NAME = 'wvp_device_channel'
                      AND INDEX_NAME = 'uk_device_channel_source')
     THEN
-        -- 先清理可能的重复数据
-        DELETE t1 FROM wvp_device_channel t1
-        INNER JOIN wvp_device_channel t2
-        WHERE t1.id < t2.id
-          AND t1.data_device_id = t2.data_device_id
-          AND t1.device_id = t2.device_id;
-ALTER TABLE wvp_device_channel ADD UNIQUE INDEX uk_device_channel_source (data_device_id, device_id);
+        -- 用 GROUP BY + LEFT JOIN 替代自连接 DELETE
+        DELETE t1
+        FROM wvp_device_channel t1
+                 LEFT JOIN (SELECT MAX(id) as id
+                            FROM wvp_device_channel
+                            GROUP BY data_device_id, device_id) t2 ON t1.id = t2.id
+        WHERE t2.id IS NULL;
+
+ALTER TABLE wvp_device_channel
+    ADD UNIQUE INDEX uk_device_channel_source (data_device_id, device_id);
 END IF;
 END; //
+DELIMITER ;
 call wvp_20260521();
 DROP PROCEDURE wvp_20260521;
-DELIMITER ;