diff --git a/frontend/src/pages/Dashboard.tsx b/frontend/src/pages/Dashboard.tsx
index e3c939e..a62cf8a 100644
--- a/frontend/src/pages/Dashboard.tsx
+++ b/frontend/src/pages/Dashboard.tsx
@@ -24,6 +24,10 @@ const Dashboard: React.FC = () => {
   const [recentAlerts, setRecentAlerts] = useState<Alert[]>([]);
   const [cameraStatus, setCameraStatus] = useState<any[]>([]);
 
+  const handleViewSnapshot = (alert: Alert) => {
+    window.open(`/api/alarms/${alert.id}/snapshot`, '_blank');
+  };
+
   useEffect(() => {
     fetchStats();
     fetchAlerts();
@@ -139,7 +143,7 @@ const Dashboard: React.FC = () => {
                     description={formatTime(alert.created_at)}
                   />
                   {alert.snapshot_path && (
-                    <Button type="link" size="small">
+                    <Button type="link" size="small" onClick={() => handleViewSnapshot(alert)}>
                       查看截图
                     </Button>
                   )}
diff --git a/logs/app.log b/logs/app.log
index e4b27b7..2413183 100644
--- a/logs/app.log
+++ b/logs/app.log
@@ -218,3 +218,24 @@
 2026-01-21 14:41:27,191 - security_monitor - INFO - 启动安保异常行为识别系统
 2026-01-21 14:41:27,205 - security_monitor - INFO - 数据库初始化完成
 2026-01-21 14:41:39,701 - security_monitor - INFO - 推理Pipeline启动，活跃摄像头数: 2
+2026-01-21 15:03:14,674 - security_monitor - INFO - 启动安保异常行为识别系统
+2026-01-21 15:03:14,688 - security_monitor - INFO - 数据库初始化完成
+2026-01-21 15:03:27,230 - security_monitor - INFO - 推理Pipeline启动，活跃摄像头数: 2
+2026-01-21 15:06:28,976 - security_monitor - INFO - 启动安保异常行为识别系统
+2026-01-21 15:06:28,990 - security_monitor - INFO - 数据库初始化完成
+2026-01-21 15:06:41,537 - security_monitor - INFO - 推理Pipeline启动，活跃摄像头数: 2
+2026-01-21 15:06:41,539 - security_monitor - INFO - 正在关闭系统...
+2026-01-21 15:06:49,686 - security_monitor - INFO - 系统已关闭
+2026-01-21 15:07:27,870 - security_monitor - INFO - 启动安保异常行为识别系统
+2026-01-21 15:07:27,884 - security_monitor - INFO - 数据库初始化完成
+2026-01-21 15:07:40,380 - security_monitor - INFO - 推理Pipeline启动，活跃摄像头数: 2
+2026-01-21 15:07:58,160 - security_monitor - INFO - 正在关闭系统...
+2026-01-21 15:07:58,299 - security_monitor - INFO - 系统已关闭
+2026-01-21 15:08:28,521 - security_monitor - INFO - 启动安保异常行为识别系统
+2026-01-21 15:08:28,533 - security_monitor - INFO - 数据库初始化完成
+2026-01-21 15:08:41,019 - security_monitor - INFO - 推理Pipeline启动，活跃摄像头数: 2
+2026-01-21 15:09:16,894 - security_monitor - INFO - 正在关闭系统...
+2026-01-21 15:09:17,139 - security_monitor - INFO - 系统已关闭
+2026-01-21 15:09:41,042 - security_monitor - INFO - 启动安保异常行为识别系统
+2026-01-21 15:09:41,055 - security_monitor - INFO - 数据库初始化完成
+2026-01-21 15:09:53,555 - security_monitor - INFO - 推理Pipeline启动，活跃摄像头数: 2
diff --git a/main.py b/main.py
index 6f23400..f625a19 100644
--- a/main.py
+++ b/main.py
@@ -11,11 +11,14 @@ os.environ["TENSORRT_DISABLE_MYELIN"] = "1"
 
 import cv2
 import numpy as np
-from fastapi import FastAPI, HTTPException
+from fastapi import FastAPI, HTTPException, Depends
 from fastapi.middleware.cors import CORSMiddleware
 from fastapi.responses import FileResponse, StreamingResponse
+from sqlalchemy.orm import Session
 from prometheus_client import start_http_server
 
+from db.models import get_db
+
 sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
 
 from ultralytics.engine.results import Boxes as UltralyticsBoxes
@@ -144,6 +147,23 @@ async def get_snapshot_base64(camera_id: int):
     return {"image": base64.b64encode(buffer).decode("utf-8")}
 
 
+@app.get("/api/alarms/{alarm_id}/snapshot")
+async def get_alarm_snapshot(alarm_id: int, db: Session = Depends(get_db)):
+    from db.models import Alarm
+
+    alarm = db.query(Alarm).filter(Alarm.id == alarm_id).first()
+    if not alarm:
+        raise HTTPException(status_code=404, detail="告警不存在")
+
+    if not alarm.snapshot_path:
+        raise HTTPException(status_code=404, detail="该告警没有截图")
+
+    if not os.path.exists(alarm.snapshot_path):
+        raise HTTPException(status_code=404, detail="截图文件不存在")
+
+    return FileResponse(alarm.snapshot_path, media_type="image/jpeg")
+
+
 @app.get("/api/camera/{camera_id}/detect")
 async def get_detection_with_overlay(camera_id: int):
     pipeline = get_pipeline()