diff --git a/backend/services/download-executor.js b/backend/services/download-executor.js
index 639bcd8..6c144a4 100644
--- a/backend/services/download-executor.js
+++ b/backend/services/download-executor.js
@@ -16,6 +16,9 @@ class DownloadExecutor {
     this.progressManager = progressManager;
     this.historyManager = historyManager;
     this.downloadService = downloadService; // 添加下载服务引用
+    
+    // 存储每个任务的中断控制器
+    this.abortControllers = new Map();
   }
 
   /**
@@ -23,6 +26,10 @@ class DownloadExecutor {
    */
   async executeArtworkDownload(task, images, size, artworkDir, artwork) {
     try {
+      // 为这个任务创建中断控制器
+      const abortController = new AbortController();
+      this.abortControllers.set(task.id, abortController);
+      
       const results = [];
 
       for (let index = 0; index < images.length; index++) {
@@ -33,6 +40,8 @@ class DownloadExecutor {
         // 检查是否应该暂停
         if (this.shouldPause(task.id)) {
           logger.info('任务已暂停，停止下载:', task.id);
+          // 中断当前下载
+          abortController.abort();
           // 确保任务状态为暂停
           task.status = 'paused';
           await this.taskManager.saveTasks();
@@ -100,8 +109,8 @@ class DownloadExecutor {
           // 确保目录存在
           await this.fileManager.ensureDirectory(path.dirname(filePath));
 
-          // 下载文件并等待完成
-          await this.fileManager.downloadFile(imageUrl, filePath);
+          // 下载文件并等待完成，传入中断控制器
+          await this.fileManager.downloadFile(imageUrl, filePath, abortController);
 
           // 验证下载的文件完整性，传入期望的MIME类型
           const expectedMimeType = this.getMimeTypeFromUrl(imageUrl);
@@ -232,6 +241,9 @@ class DownloadExecutor {
       task.end_time = new Date();
       await this.taskManager.saveTasks();
       this.progressManager.notifyProgressUpdate(task.id, task);
+    } finally {
+      // 清理中断控制器
+      this.abortControllers.delete(task.id);
     }
   }
 
@@ -612,6 +624,19 @@ class DownloadExecutor {
     return { success: true };
   }
 
+  /**
+   * 中断指定任务的下载
+   * @param {string} taskId - 任务ID
+   */
+  abortTask(taskId) {
+    const abortController = this.abortControllers.get(taskId);
+    if (abortController) {
+      logger.info('中断任务下载', { taskId });
+      abortController.abort();
+      this.abortControllers.delete(taskId);
+    }
+  }
+
   /**
    * 检查任务是否应该暂停
    */
diff --git a/backend/services/download.js b/backend/services/download.js
index a4f0e66..ccc33fc 100644
--- a/backend/services/download.js
+++ b/backend/services/download.js
@@ -239,6 +239,9 @@ class DownloadService {
       // 更新任务状态为取消中，防止并发操作
       await this.taskManager.updateTask(taskId, { status: 'cancelling' });
 
+      // 立即中断正在进行的下载
+      this.downloadExecutor.abortTask(taskId);
+
       // 清理未完成的文件
       await this.cleanupIncompleteFiles(task);
 
@@ -288,6 +291,9 @@ class DownloadService {
       // 更新任务状态为暂停中，防止并发操作
       await this.taskManager.updateTask(taskId, { status: 'pausing' });
 
+      // 立即中断正在进行的下载
+      this.downloadExecutor.abortTask(taskId);
+
       // 清理未完成的文件
       await this.cleanupIncompleteFiles(task);
 
diff --git a/backend/services/file-manager.js b/backend/services/file-manager.js
index c2f6b9e..cff3a58 100644
--- a/backend/services/file-manager.js
+++ b/backend/services/file-manager.js
@@ -262,7 +262,7 @@ class FileManager {
   /**
    * 简单的文件下载方法
    */
-  async downloadFile(url, filePath) {
+  async downloadFile(url, filePath, abortController = null) {
     const downloadConfig = await this.getDownloadConfig();
     const maxRetries = downloadConfig.retryAttempts;
     let lastError = null;
@@ -272,6 +272,11 @@ class FileManager {
       let response = null;
       
       try {
+        // 检查是否已被中断
+        if (abortController && abortController.signal.aborted) {
+          throw new Error('下载已被中断');
+        }
+
         // 使用增强的文件工具类确保目录存在
         const dirPath = path.dirname(filePath);
         const dirCreated = await FileUtils.safeEnsureDirEnhanced(dirPath);
@@ -288,6 +293,11 @@ class FileManager {
           }
         }
 
+        // 再次检查是否已被中断
+        if (abortController && abortController.signal.aborted) {
+          throw new Error('下载已被中断');
+        }
+
         response = await axios({
           method: 'GET',
           url: url,
@@ -296,7 +306,8 @@ class FileManager {
             'Referer': 'https://www.pixiv.net/',
             'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36'
           },
-          timeout: downloadConfig.timeout
+          timeout: downloadConfig.timeout,
+          signal: abortController ? abortController.signal : undefined
         });
 
         // 使用增强的写入流创建方法
@@ -315,6 +326,24 @@ class FileManager {
             }
           };
 
+          // 监听中断信号
+          if (abortController) {
+            abortController.signal.addEventListener('abort', () => {
+              if (isResolved) return;
+              isResolved = true;
+              
+              logger.info(`下载被中断: ${filePath}`);
+              cleanup();
+              
+              // 删除未完成的文件
+              this.safeDeleteFile(filePath).catch(error => {
+                logger.warn('删除被中断的文件失败', { filePath, error: error.message });
+              });
+              
+              reject(new Error('下载被中断'));
+            });
+          }
+
           writer.on('finish', async () => {
             if (isResolved) return;
             isResolved = true;
@@ -378,6 +407,9 @@ class FileManager {
           // 清理超时定时器
           writer.on('finish', () => clearTimeout(timeout));
           writer.on('error', () => clearTimeout(timeout));
+          if (abortController) {
+            abortController.signal.addEventListener('abort', () => clearTimeout(timeout));
+          }
         });
         
       } catch (error) {
@@ -391,7 +423,25 @@ class FileManager {
         
         lastError = error;
         
-        // 处理文件系统错误
+        // 首先检查是否是中断错误，如果是则直接抛出，不重试
+        if (error.message === '下载已被中断' || 
+            error.code === 'ERR_CANCELED' || 
+            error.name === 'AbortError' ||
+            (error.message && error.message.includes('canceled'))) {
+          
+          logger.error(`下载文件失败 (尝试 ${attempt}/${maxRetries}): ${filePath}`, {
+            error: error.message,
+            stack: error.stack,
+            url,
+            retryable: false,
+            attempt,
+            reason: 'download_interrupted'
+          });
+          
+          throw error;
+        }
+        
+        // 处理其他文件系统错误
         const errorResult = ErrorHandler.handleFileSystemError(error, filePath, 'download');
         
         logger.error(`下载文件失败 (尝试 ${attempt}/${maxRetries}): ${filePath}`, {