diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/SubscribeRequestProcessor.java b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/SubscribeRequestProcessor.java
index 6504dd428..12d84b7d2 100755
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/SubscribeRequestProcessor.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/SubscribeRequestProcessor.java
@@ -69,6 +69,12 @@ public class SubscribeRequestProcessor extends SIPRequestProcessorParent impleme
 				responseAck(request, Response.BAD_REQUEST);
 				return;
 			}
+			ExpiresHeader expires = request.getExpires();
+			if (expires == null) {
+				log.error("处理SUBSCRIBE请求  未获取到ExpiresHeader{}", evt.getRequest());
+				responseAck(request, Response.BAD_REQUEST, "missing expires");
+				return;
+			}
 			String platformId = SipUtils.getUserIdFromFromHeader(request);
 			String cmd = XmlUtil.getText(rootElement, "CmdType");
 			log.info("[收到订阅请求] 类型： {}, 来自： {}", cmd, platformId);
@@ -181,7 +187,6 @@ public class SubscribeRequestProcessor extends SIPRequestProcessorParent impleme
 				.append("<Result>OK</Result>\r\n")
 				.append("</Response>\r\n");
 
-
 		try {
 			int expires = request.getExpires().getExpires();
 			Platform parentPlatform = platformService.queryPlatformByServerGBId(platformId);