diff --git a/src-tauri/src/commands/file_utils.rs b/src-tauri/src/commands/file_utils.rs
index 64ad135..556388c 100644
--- a/src-tauri/src/commands/file_utils.rs
+++ b/src-tauri/src/commands/file_utils.rs
@@ -40,3 +40,57 @@ pub async fn read_image_as_data_url(file_path: String) -> Result<String, String>
         Err(e) => Err(format!("Failed to read file: {}", e)),
     }
 }
+
+/// 读取视频文件并返回base64编码的数据URL
+#[command]
+pub async fn read_video_as_data_url(file_path: String) -> Result<String, String> {
+    let path = Path::new(&file_path);
+
+    // 检查文件是否存在
+    if !path.exists() {
+        return Err("File does not exist".to_string());
+    }
+
+    // 检查是否是视频文件
+    let extension = path.extension()
+        .and_then(|ext| ext.to_str())
+        .map(|ext| ext.to_lowercase())
+        .unwrap_or_default();
+
+    let mime_type = match extension.as_str() {
+        "mp4" => "video/mp4",
+        "avi" => "video/x-msvideo",
+        "mov" => "video/quicktime",
+        "mkv" => "video/x-matroska",
+        "wmv" => "video/x-ms-wmv",
+        "flv" => "video/x-flv",
+        "webm" => "video/webm",
+        "m4v" => "video/x-m4v",
+        _ => return Err("Unsupported video format".to_string()),
+    };
+
+    // 读取文件内容
+    match fs::read(&file_path) {
+        Ok(file_data) => {
+            // 编码为base64
+            let base64_data = general_purpose::STANDARD.encode(&file_data);
+            // 返回data URL格式
+            Ok(format!("data:{};base64,{}", mime_type, base64_data))
+        }
+        Err(e) => Err(format!("Failed to read file: {}", e)),
+    }
+}
+
+/// 获取视频文件的blob URL（用于大文件）
+#[command]
+pub async fn get_video_blob_url(file_path: String) -> Result<String, String> {
+    let path = Path::new(&file_path);
+
+    // 检查文件是否存在
+    if !path.exists() {
+        return Err("File does not exist".to_string());
+    }
+
+    // 对于视频文件，我们返回文件路径，让前端使用convertFileSrc
+    Ok(file_path)
+}
diff --git a/src-tauri/src/lib.rs b/src-tauri/src/lib.rs
index 1b89306..7aa52a7 100644
--- a/src-tauri/src/lib.rs
+++ b/src-tauri/src/lib.rs
@@ -82,7 +82,9 @@ pub fn run() {
       commands::media::search_segments,
       commands::media::delete_segment,
       commands::media::delete_original_video,
-      commands::file_utils::read_image_as_data_url
+      commands::file_utils::read_image_as_data_url,
+      commands::file_utils::read_video_as_data_url,
+      commands::file_utils::get_video_blob_url
     ])
     .run(tauri::generate_context!())
     .expect("error while running tauri application");
diff --git a/src/components/VideoPlayer.tsx b/src/components/VideoPlayer.tsx
new file mode 100644
index 0000000..bf326a5
--- /dev/null
+++ b/src/components/VideoPlayer.tsx
@@ -0,0 +1,245 @@
+import React, { useState, useRef, useEffect } from 'react'
+import { Play, Pause, Volume2, VolumeX, Maximize2, X } from 'lucide-react'
+import { convertFileSrc } from '@tauri-apps/api/core'
+
+interface VideoPlayerProps {
+  videoPath: string
+  isOpen: boolean
+  onClose: () => void
+  title?: string
+}
+
+const VideoPlayer: React.FC<VideoPlayerProps> = ({
+  videoPath,
+  isOpen,
+  onClose,
+  title = '视频播放'
+}) => {
+  const videoRef = useRef<HTMLVideoElement>(null)
+  const [isPlaying, setIsPlaying] = useState(false)
+  const [isMuted, setIsMuted] = useState(false)
+  const [currentTime, setCurrentTime] = useState(0)
+  const [duration, setDuration] = useState(0)
+  const [volume, setVolume] = useState(1)
+  const [isFullscreen, setIsFullscreen] = useState(false)
+  const [videoSrc, setVideoSrc] = useState<string>('')
+
+  useEffect(() => {
+    if (isOpen && videoPath) {
+      // 使用Tauri的convertFileSrc来获取安全的文件URL
+      const src = convertFileSrc(videoPath)
+      setVideoSrc(src)
+    }
+  }, [isOpen, videoPath])
+
+  useEffect(() => {
+    const video = videoRef.current
+    if (!video) return
+
+    const handleTimeUpdate = () => setCurrentTime(video.currentTime)
+    const handleDurationChange = () => setDuration(video.duration)
+    const handleEnded = () => setIsPlaying(false)
+    const handlePlay = () => setIsPlaying(true)
+    const handlePause = () => setIsPlaying(false)
+
+    video.addEventListener('timeupdate', handleTimeUpdate)
+    video.addEventListener('durationchange', handleDurationChange)
+    video.addEventListener('ended', handleEnded)
+    video.addEventListener('play', handlePlay)
+    video.addEventListener('pause', handlePause)
+
+    return () => {
+      video.removeEventListener('timeupdate', handleTimeUpdate)
+      video.removeEventListener('durationchange', handleDurationChange)
+      video.removeEventListener('ended', handleEnded)
+      video.removeEventListener('play', handlePlay)
+      video.removeEventListener('pause', handlePause)
+    }
+  }, [videoSrc])
+
+  const handlePlayPause = () => {
+    const video = videoRef.current
+    if (!video) return
+
+    if (isPlaying) {
+      video.pause()
+    } else {
+      video.play().catch(err => {
+        console.error('Failed to play video:', err)
+      })
+    }
+  }
+
+  const handleSeek = (e: React.ChangeEvent<HTMLInputElement>) => {
+    const video = videoRef.current
+    if (!video) return
+
+    const newTime = parseFloat(e.target.value)
+    video.currentTime = newTime
+    setCurrentTime(newTime)
+  }
+
+  const handleVolumeChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+    const video = videoRef.current
+    if (!video) return
+
+    const newVolume = parseFloat(e.target.value)
+    video.volume = newVolume
+    setVolume(newVolume)
+    setIsMuted(newVolume === 0)
+  }
+
+  const handleMuteToggle = () => {
+    const video = videoRef.current
+    if (!video) return
+
+    if (isMuted) {
+      video.volume = volume
+      setIsMuted(false)
+    } else {
+      video.volume = 0
+      setIsMuted(true)
+    }
+  }
+
+  const handleFullscreen = () => {
+    const video = videoRef.current
+    if (!video) return
+
+    if (!isFullscreen) {
+      if (video.requestFullscreen) {
+        video.requestFullscreen()
+        setIsFullscreen(true)
+      }
+    } else {
+      if (document.exitFullscreen) {
+        document.exitFullscreen()
+        setIsFullscreen(false)
+      }
+    }
+  }
+
+  const formatTime = (time: number) => {
+    const minutes = Math.floor(time / 60)
+    const seconds = Math.floor(time % 60)
+    return `${minutes}:${seconds.toString().padStart(2, '0')}`
+  }
+
+  if (!isOpen) return null
+
+  return (
+    <div className="fixed inset-0 bg-black bg-opacity-90 flex items-center justify-center z-50">
+      <div className="relative w-full max-w-4xl mx-4">
+        {/* 关闭按钮 */}
+        <button
+          onClick={onClose}
+          className="absolute top-4 right-4 z-10 p-2 bg-black/50 text-white rounded-full hover:bg-black/70 transition-colors"
+        >
+          <X size={24} />
+        </button>
+
+        {/* 标题 */}
+        <div className="absolute top-4 left-4 z-10 text-white">
+          <h3 className="text-lg font-medium">{title}</h3>
+        </div>
+
+        {/* 视频容器 */}
+        <div className="relative bg-black rounded-lg overflow-hidden">
+          <video
+            ref={videoRef}
+            src={videoSrc}
+            className="w-full h-auto max-h-[70vh]"
+            onClick={handlePlayPause}
+            onError={(e) => {
+              console.error('Video error:', e)
+            }}
+          />
+
+          {/* 控制栏 */}
+          <div className="absolute bottom-0 left-0 right-0 bg-gradient-to-t from-black/80 to-transparent p-4">
+            {/* 进度条 */}
+            <div className="mb-4">
+              <input
+                type="range"
+                min="0"
+                max={duration || 0}
+                value={currentTime}
+                onChange={handleSeek}
+                className="w-full h-1 bg-gray-600 rounded-lg appearance-none cursor-pointer slider"
+              />
+            </div>
+
+            {/* 控制按钮 */}
+            <div className="flex items-center justify-between">
+              <div className="flex items-center space-x-4">
+                {/* 播放/暂停 */}
+                <button
+                  onClick={handlePlayPause}
+                  className="p-2 text-white hover:text-blue-400 transition-colors"
+                >
+                  {isPlaying ? <Pause size={24} /> : <Play size={24} />}
+                </button>
+
+                {/* 音量控制 */}
+                <div className="flex items-center space-x-2">
+                  <button
+                    onClick={handleMuteToggle}
+                    className="text-white hover:text-blue-400 transition-colors"
+                  >
+                    {isMuted ? <VolumeX size={20} /> : <Volume2 size={20} />}
+                  </button>
+                  <input
+                    type="range"
+                    min="0"
+                    max="1"
+                    step="0.1"
+                    value={isMuted ? 0 : volume}
+                    onChange={handleVolumeChange}
+                    className="w-20 h-1 bg-gray-600 rounded-lg appearance-none cursor-pointer"
+                  />
+                </div>
+
+                {/* 时间显示 */}
+                <div className="text-white text-sm">
+                  {formatTime(currentTime)} / {formatTime(duration)}
+                </div>
+              </div>
+
+              <div className="flex items-center space-x-2">
+                {/* 全屏按钮 */}
+                <button
+                  onClick={handleFullscreen}
+                  className="p-2 text-white hover:text-blue-400 transition-colors"
+                >
+                  <Maximize2 size={20} />
+                </button>
+              </div>
+            </div>
+          </div>
+        </div>
+      </div>
+
+      <style jsx>{`
+        .slider::-webkit-slider-thumb {
+          appearance: none;
+          height: 16px;
+          width: 16px;
+          border-radius: 50%;
+          background: #3b82f6;
+          cursor: pointer;
+        }
+        
+        .slider::-moz-range-thumb {
+          height: 16px;
+          width: 16px;
+          border-radius: 50%;
+          background: #3b82f6;
+          cursor: pointer;
+          border: none;
+        }
+      `}</style>
+    </div>
+  )
+}
+
+export default VideoPlayer
diff --git a/src/components/VideoSegmentCard.tsx b/src/components/VideoSegmentCard.tsx
index 9bba8cb..defaad6 100644
--- a/src/components/VideoSegmentCard.tsx
+++ b/src/components/VideoSegmentCard.tsx
@@ -1,7 +1,8 @@
 import React, { useState } from 'react'
-import { Play, Pause, Video, Trash2, Tag, Eye, Clock, HardDrive, Hash, TrendingUp, X } from 'lucide-react'
+import { Play, Video, Trash2, Tag, Eye, Clock, HardDrive, Hash, TrendingUp, X } from 'lucide-react'
 import { VideoSegment, MediaService } from '../services/mediaService'
 import ProjectImage from './ProjectImage'
+import VideoPlayer from './VideoPlayer'
 
 interface VideoSegmentCardProps {
   segment: VideoSegment
@@ -16,42 +17,12 @@ const VideoSegmentCard: React.FC<VideoSegmentCardProps> = ({
   onTagsUpdate,
   onUse
 }) => {
-  const [isPlaying, setIsPlaying] = useState(false)
-  const [videoElement, setVideoElement] = useState<HTMLVideoElement | null>(null)
+  const [showVideoPlayer, setShowVideoPlayer] = useState(false)
   const [showTagEditor, setShowTagEditor] = useState(false)
   const [newTag, setNewTag] = useState('')
 
-  const handlePlayPause = () => {
-    if (!videoElement) {
-      // 创建视频元素
-      const video_el = document.createElement('video')
-      video_el.src = `file://${segment.file_path}`
-      video_el.addEventListener('ended', () => setIsPlaying(false))
-      video_el.addEventListener('error', (e) => {
-        console.error('Video playback error:', e)
-        setIsPlaying(false)
-      })
-      setVideoElement(video_el)
-      
-      video_el.play()
-        .then(() => setIsPlaying(true))
-        .catch(err => {
-          console.error('Failed to play video:', err)
-          setIsPlaying(false)
-        })
-    } else {
-      if (isPlaying) {
-        videoElement.pause()
-        setIsPlaying(false)
-      } else {
-        videoElement.play()
-          .then(() => setIsPlaying(true))
-          .catch(err => {
-            console.error('Failed to play video:', err)
-            setIsPlaying(false)
-          })
-      }
-    }
+  const handlePlayVideo = () => {
+    setShowVideoPlayer(true)
   }
 
   const handleUse = () => {
@@ -61,11 +32,6 @@ const VideoSegmentCard: React.FC<VideoSegmentCardProps> = ({
   }
 
   const handleDelete = () => {
-    if (videoElement) {
-      videoElement.pause()
-      setVideoElement(null)
-      setIsPlaying(false)
-    }
     onDelete(segment.id)
   }
 
@@ -101,11 +67,11 @@ const VideoSegmentCard: React.FC<VideoSegmentCardProps> = ({
         {/* 播放按钮覆盖层 */}
         <div className="absolute inset-0 bg-black bg-opacity-0 hover:bg-opacity-30 transition-all flex items-center justify-center">
           <button
-            onClick={handlePlayPause}
+            onClick={handlePlayVideo}
             className="p-3 bg-white/80 rounded-full hover:bg-white transition-colors opacity-0 hover:opacity-100"
-            title={isPlaying ? '暂停' : '播放'}
+            title="播放视频"
           >
-            {isPlaying ? <Pause size={24} className="text-gray-800" /> : <Play size={24} className="text-gray-800" />}
+            <Play size={24} className="text-gray-800" />
           </button>
         </div>
 
@@ -196,7 +162,7 @@ const VideoSegmentCard: React.FC<VideoSegmentCardProps> = ({
                 onChange={(e) => setNewTag(e.target.value)}
                 placeholder="添加标签"
                 className="flex-1 px-2 py-1 text-xs border border-gray-300 rounded focus:ring-1 focus:ring-blue-500 focus:border-transparent"
-                onKeyPress={(e) => e.key === 'Enter' && handleAddTag()}
+                onKeyDown={(e) => e.key === 'Enter' && handleAddTag()}
               />
               <button
                 onClick={handleAddTag}
@@ -244,6 +210,14 @@ const VideoSegmentCard: React.FC<VideoSegmentCardProps> = ({
           </div>
         </div>
       </div>
+
+      {/* 视频播放器 */}
+      <VideoPlayer
+        videoPath={segment.file_path}
+        isOpen={showVideoPlayer}
+        onClose={() => setShowVideoPlayer(false)}
+        title={`片段 ${segment.segment_index + 1} - ${segment.filename}`}
+      />
     </div>
   )
 }