diff --git a/web/src/main/java/com/zhehekeji/web/config/ConfigProperties.java b/web/src/main/java/com/zhehekeji/web/config/ConfigProperties.java
index f667d62..f64a3d3 100644
--- a/web/src/main/java/com/zhehekeji/web/config/ConfigProperties.java
+++ b/web/src/main/java/com/zhehekeji/web/config/ConfigProperties.java
@@ -64,6 +64,9 @@ public class ConfigProperties {
 
         private Long delayDownloadMp4;
 
+        private Long delayStartDownloadMp4 = 0L;
+        private Long delayEndDownloadMp4 = 0L;
+
     }
 
     @Data
diff --git a/web/src/main/java/com/zhehekeji/web/lib/hik/HikCameraControlModuleImpl.java b/web/src/main/java/com/zhehekeji/web/lib/hik/HikCameraControlModuleImpl.java
index 74f7ee6..97b497a 100644
--- a/web/src/main/java/com/zhehekeji/web/lib/hik/HikCameraControlModuleImpl.java
+++ b/web/src/main/java/com/zhehekeji/web/lib/hik/HikCameraControlModuleImpl.java
@@ -3,11 +3,16 @@ package com.zhehekeji.web.lib.hik;
 import com.sun.jna.NativeLong;
 import com.sun.jna.ptr.IntByReference;
 import com.zhehekeji.common.util.PathUtil;
+import com.zhehekeji.common.util.SpringContextUtil;
 import com.zhehekeji.core.util.Assert;
+import com.zhehekeji.web.Application;
+import com.zhehekeji.web.config.ConfigProperties;
 import com.zhehekeji.web.lib.CameraConnMap;
 import com.zhehekeji.web.lib.CameraControlModule;
 import com.zhehekeji.web.lib.joyware.NetSDKLib;
 import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.BeanFactory;
+import org.springframework.context.ApplicationContext;
 
 import java.io.*;
 import java.nio.charset.StandardCharsets;
@@ -259,6 +264,9 @@ public class HikCameraControlModuleImpl implements CameraControlModule {
     public void downloadMp4(Integer cameraId, String path, LocalDateTime start, LocalDateTime end) {
         /*start = start.minusMinutes(1);
         end = end.minusMinutes(1);*/
+        ConfigProperties configProperties =  SpringContextUtil.getBean(ConfigProperties.class);
+        start = start.minusNanos(configProperties.getCameraConfig().getDelayStartDownloadMp4() *10000);
+        start = start.plusNanos(configProperties.getCameraConfig().getDelayEndDownloadMp4() *10000);
         PathUtil.checkDirc(path);
         HCNetSDK.NET_DVR_TIME startTime = new HCNetSDK.NET_DVR_TIME();
         startTime.setTime(start.getYear(), start.getMonthValue(), start.getDayOfMonth(), start.getHour(), start.getMinute(), start.getSecond());
diff --git a/web/src/main/resources/application-test.yml b/web/src/main/resources/application-test.yml
index ceafdee..95a1481 100644
--- a/web/src/main/resources/application-test.yml
+++ b/web/src/main/resources/application-test.yml
@@ -38,6 +38,10 @@ cameraConfig:
   # 利珀延迟10s就可
   # 单位毫秒
   delayDownloadMp4: 120000
+  # 提前/延后下载视频内容时间，单位s
+  delayStartDownloadMp4: 120000
+  delayEndDownloadMp4: 120000
+
 # ------------
 # -----图片  mp4下载地址
 savePath: