diff --git a/src/main/java/com/genersoft/iot/vmp/media/zlm/SendRtpPortManager.java b/src/main/java/com/genersoft/iot/vmp/media/zlm/SendRtpPortManager.java
index 8366a4a2..1fb8256c 100644
--- a/src/main/java/com/genersoft/iot/vmp/media/zlm/SendRtpPortManager.java
+++ b/src/main/java/com/genersoft/iot/vmp/media/zlm/SendRtpPortManager.java
@@ -1,13 +1,20 @@
 package com.genersoft.iot.vmp.media.zlm;
 
+import com.genersoft.iot.vmp.common.VideoManagerConstants;
 import com.genersoft.iot.vmp.conf.UserSetting;
+import com.genersoft.iot.vmp.gb28181.bean.SendRtpItem;
 import com.genersoft.iot.vmp.media.zlm.dto.MediaSendRtpPortInfo;
+import com.genersoft.iot.vmp.utils.redis.RedisUtil;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.data.redis.core.RedisTemplate;
 import org.springframework.stereotype.Component;
 
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
 @Component
 public class SendRtpPortManager {
 
@@ -29,27 +36,54 @@ public class SendRtpPortManager {
     }
 
     public int getNextPort(String mediaServerId) {
-        String key = KEY + userSetting.getServerId() + "_" +  mediaServerId;
-        MediaSendRtpPortInfo mediaSendRtpPortInfo = (MediaSendRtpPortInfo)redisTemplate.opsForValue().get(key);
+        String key = VideoManagerConstants.PLATFORM_SEND_RTP_INFO_PREFIX
+                + userSetting.getServerId() + "_*";
+        List<Object> queryResult = RedisUtil.scan(redisTemplate, key);
+        Map<Integer, SendRtpItem> sendRtpItemMap = new HashMap<>();
+
+        for (Object o : queryResult) {
+            SendRtpItem sendRtpItem = (SendRtpItem) redisTemplate.opsForValue().get(o);
+            if (sendRtpItem != null) {
+                sendRtpItemMap.put(sendRtpItem.getLocalPort(), sendRtpItem);
+            }
+        }
+
+        String sendIndexKey = KEY + userSetting.getServerId() + "_" +  mediaServerId;
+        MediaSendRtpPortInfo mediaSendRtpPortInfo = (MediaSendRtpPortInfo)redisTemplate.opsForValue().get(sendIndexKey);
         if (mediaSendRtpPortInfo == null) {
             logger.warn("[发送端口管理] 获取{}的发送端口时未找到端口信息", mediaSendRtpPortInfo);
             return 0;
         }
+        int port = getPort(mediaSendRtpPortInfo.getCurrent(),
+                mediaSendRtpPortInfo.getStart(),
+                mediaSendRtpPortInfo.getEnd(), checkPort -> sendRtpItemMap.get(checkPort) == null);
+
+        mediaSendRtpPortInfo.setCurrent(port);
+        redisTemplate.opsForValue().set(sendIndexKey, mediaSendRtpPortInfo);
+        return port;
+    }
+
+    interface CheckPortCallback{
+        boolean check(int port);
+    }
+
+    private int getPort(int current, int start, int end, CheckPortCallback checkPortCallback) {
         int port;
-        if (mediaSendRtpPortInfo.getCurrent() %2 != 0) {
-            port = mediaSendRtpPortInfo.getCurrent() + 1;
+        if (current %2 != 0) {
+            port = current + 1;
         }else {
-            port = mediaSendRtpPortInfo.getCurrent() + 2;
+            port = current + 2;
         }
-        if (port > mediaSendRtpPortInfo.getEnd()) {
-            if (mediaSendRtpPortInfo.getStart() %2 != 0) {
-                port = mediaSendRtpPortInfo.getStart() + 1;
+        if (port > end) {
+            if (start %2 != 0) {
+                port = start + 1;
             }else {
-                port = mediaSendRtpPortInfo.getStart();
+                port = start;
             }
         }
-        mediaSendRtpPortInfo.setCurrent(port);
-        redisTemplate.opsForValue().set(key, mediaSendRtpPortInfo);
+        if (!checkPortCallback.check(port)) {
+            return getPort(port, start, end, checkPortCallback);
+        }
         return port;
     }
 }
diff --git a/src/main/java/com/genersoft/iot/vmp/vmanager/rtp/RtpController.java b/src/main/java/com/genersoft/iot/vmp/vmanager/rtp/RtpController.java
index a9a66f5c..18215223 100644
--- a/src/main/java/com/genersoft/iot/vmp/vmanager/rtp/RtpController.java
+++ b/src/main/java/com/genersoft/iot/vmp/vmanager/rtp/RtpController.java
@@ -142,11 +142,12 @@ public class RtpController {
             // 预创建发流信息
             int portForVideo = sendRtpPortManager.getNextPort(mediaServerItem.getId());
             int portForAudio = sendRtpPortManager.getNextPort(mediaServerItem.getId());
-            // 将信息写入redis中，以备后用
-            redisTemplate.opsForValue().set(key, otherRtpSendInfo, 300, TimeUnit.SECONDS);
+
             otherRtpSendInfo.setSendLocalIp(mediaServerItem.getSdpIp());
             otherRtpSendInfo.setSendLocalPortForVideo(portForVideo);
             otherRtpSendInfo.setSendLocalPortForAudio(portForAudio);
+            // 将信息写入redis中，以备后用
+            redisTemplate.opsForValue().set(key, otherRtpSendInfo, 300, TimeUnit.SECONDS);
             logger.info("[第三方服务对接->开启收流和获取发流信息] 结果，callId->{}， {}", callId, otherRtpSendInfo);
         }
         return otherRtpSendInfo;