diff --git a/backend/services/download-registry.js b/backend/services/download-registry.js
index 1831d2e..aa8f95d 100644
--- a/backend/services/download-registry.js
+++ b/backend/services/download-registry.js
@@ -35,7 +35,7 @@ class DownloadRegistry {
       // 加载现有注册表
       await this.loadRegistry();
       
-      logger.info(`下载记录注册表初始化完成，总共包含${Object.keys(this.registry.artists).length}个作者，${this.getTotalArtworkCount()}个工作品`);
+      logger.info(`下载记录注册表初始化完成，总共包含${Object.keys(this.registry.artists).length}个作者，${this.getTotalArtworkCount()}个作品`);
     } catch (error) {
       logger.error('下载记录注册表初始化失败:', error);
       throw error;
diff --git a/ui/src/components/common/WatchlistWidget.vue b/ui/src/components/common/WatchlistWidget.vue
index 76f7b02..d0d251d 100644
--- a/ui/src/components/common/WatchlistWidget.vue
+++ b/ui/src/components/common/WatchlistWidget.vue
@@ -56,11 +56,13 @@
       :batch-urls="batchUrls"
       :auto-generate-title="autoGenerateTitle"
       :parsed-urls="parsedUrls"
+      :import-mode="importMode"
       @update:mode="addMode = $event"
       @update:title="addTitle = $event"
       @update:url="addUrl = $event"
       @update:batchUrls="batchUrls = $event"
       @update:autoGenerateTitle="autoGenerateTitle = $event"
+      @update:importMode="importMode = $event"
       @quickAdd="fillQuickAdd"
       @save="saveAdd"
       @cancel="cancelAdd"
@@ -92,6 +94,7 @@ const addUrl = ref('');
 const addMode = ref<'single' | 'batch'>('single');
 const batchUrls = ref('');
 const autoGenerateTitle = ref(true);
+const importMode = ref<'merge' | 'overwrite'>('merge');
 
 // 搜索和排序
 const searchQuery = ref('');
@@ -401,7 +404,29 @@ const saveAdd = async () => {
     }
   } else {
     // 批量添加模式
-    const urlsToAdd = parsedUrls.value.filter(item => !item.isDuplicate);
+    let urlsToAdd = parsedUrls.value;
+    
+    if (importMode.value === 'merge') {
+      // 重合模式：只添加不重复的URL
+      urlsToAdd = urlsToAdd.filter(item => !item.isDuplicate);
+    } else if (importMode.value === 'overwrite') {
+      // 覆盖模式：删除所有现有项目，然后添加所有新项目
+      if (urlsToAdd.length === 0) return;
+      
+      // 确认覆盖操作
+      if (!confirm('覆盖模式将删除所有现有的待看项目并导入新的项目。确定要继续吗？')) {
+        return;
+      }
+      
+      // 删除所有现有项目
+      const allItems = items.value;
+      for (const item of allItems) {
+        await watchlistStore.deleteItem(item.id);
+      }
+      
+      console.log(`已删除 ${allItems.length} 个现有项目`);
+    }
+    
     if (urlsToAdd.length === 0) return;
 
     // 依次添加每个URL
@@ -422,7 +447,11 @@ const saveAdd = async () => {
 
     if (successCount > 0) {
       cancelAdd();
-      console.log(`成功添加 ${successCount} 个项目`);
+      if (importMode.value === 'overwrite') {
+        console.log(`覆盖导入完成：成功添加 ${successCount} 个项目`);
+      } else {
+        console.log(`重合导入完成：成功添加 ${successCount} 个项目`);
+      }
     }
   }
 };
diff --git a/ui/src/components/common/watchlist/AddModal.vue b/ui/src/components/common/watchlist/AddModal.vue
index d5aef1b..c296d54 100644
--- a/ui/src/components/common/watchlist/AddModal.vue
+++ b/ui/src/components/common/watchlist/AddModal.vue
@@ -52,6 +52,35 @@
 
         <!-- 批量添加模式 -->
         <template v-else>
+          <!-- 导入模式选择 -->
+          <div class="form-group">
+            <label>导入模式</label>
+            <div class="import-mode-selector">
+              <button @click="$emit('update:importMode', 'merge')" 
+                :class="['import-mode-btn', { active: importMode === 'merge' }]"
+                type="button">
+                <div class="mode-icon">🔄</div>
+                <div class="mode-info">
+                  <div class="mode-title">重合模式</div>
+                  <div class="mode-desc">跳过已存在的项目，只添加新项目</div>
+                </div>
+              </button>
+              <button @click="$emit('update:importMode', 'overwrite')" 
+                :class="['import-mode-btn', { active: importMode === 'overwrite' }]"
+                type="button">
+                <div class="mode-icon">⚠️</div>
+                <div class="mode-info">
+                  <div class="mode-title">覆盖模式</div>
+                  <div class="mode-desc">清空现有数据，重新导入所有项目</div>
+                </div>
+              </button>
+            </div>
+            <small class="form-help">
+              <strong>重合模式：</strong>保留现有数据，只添加新的项目（推荐）<br>
+              <strong>覆盖模式：</strong>删除所有现有数据，重新导入（谨慎使用）
+            </small>
+          </div>
+
           <div class="form-group">
             <label>批量URL列表</label>
             <textarea :value="batchUrls"
@@ -83,7 +112,8 @@ http://localhost:3001/artist/103047332
             <div class="preview-list">
               <div v-for="(item, index) in parsedUrls" :key="index" class="preview-item">
                 <div class="preview-url">{{ item.path }}</div>
-                <div v-if="item.isDuplicate" class="preview-status duplicate">已存在</div>
+                <div v-if="importMode === 'overwrite'" class="preview-status overwrite">将导入</div>
+                <div v-else-if="item.isDuplicate" class="preview-status duplicate">已存在</div>
                 <div v-else class="preview-status new">新增</div>
               </div>
             </div>
@@ -116,6 +146,7 @@ interface Props {
   batchUrls: string;
   autoGenerateTitle: boolean;
   parsedUrls: ParsedUrl[];
+  importMode: 'merge' | 'overwrite';
 }
 
 defineProps<Props>();
@@ -128,6 +159,7 @@ const emit = defineEmits<{
   'update:url': [value: string];
   'update:batchUrls': [value: string];
   'update:autoGenerateTitle': [value: boolean];
+  'update:importMode': [value: 'merge' | 'overwrite'];
   quickAdd: [path: string, title: string];
 }>();
 
@@ -378,6 +410,64 @@ const handleSave = () => {
   color: white;
 }
 
+.preview-status.overwrite {
+  background: var(--color-primary);
+  color: white;
+}
+
+/* 导入模式选择器样式 */
+.import-mode-selector {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+}
+
+.import-mode-btn {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  padding: 12px 16px;
+  border: 2px solid var(--color-border);
+  border-radius: 8px;
+  background: var(--color-bg-secondary);
+  color: var(--color-text-secondary);
+  cursor: pointer;
+  transition: all 0.2s ease;
+  text-align: left;
+}
+
+.import-mode-btn:hover {
+  background: var(--color-bg-tertiary);
+  border-color: var(--color-primary-light);
+}
+
+.import-mode-btn.active {
+  background: var(--color-primary-light);
+  border-color: var(--color-primary);
+  color: var(--color-primary);
+}
+
+.mode-icon {
+  font-size: 20px;
+  flex-shrink: 0;
+}
+
+.mode-info {
+  flex: 1;
+}
+
+.mode-title {
+  font-size: 14px;
+  font-weight: 600;
+  margin-bottom: 2px;
+}
+
+.mode-desc {
+  font-size: 12px;
+  opacity: 0.8;
+  line-height: 1.3;
+}
+
 .modal-actions {
   display: flex;
   gap: 12px;
diff --git a/ui/src/components/common/watchlist/WatchlistPanel.vue b/ui/src/components/common/watchlist/WatchlistPanel.vue
index 42a255b..6ba3953 100644
--- a/ui/src/components/common/watchlist/WatchlistPanel.vue
+++ b/ui/src/components/common/watchlist/WatchlistPanel.vue
@@ -7,9 +7,27 @@
         <button @click="exportWatchlist" class="export-btn" title="导出待看名单">
           <SvgIcon name="download" class="export-icon" />
         </button>
-        <button @click="triggerImport" class="import-btn" title="导入待看名单">
-          <SvgIcon name="upload" class="import-icon" />
-        </button>
+        <div class="import-section">
+          <button @click="triggerImport" class="import-btn" title="导入待看名单">
+            <SvgIcon name="upload" class="import-icon" />
+          </button>
+          <div class="import-mode-selector">
+            <button 
+              @click="importMode = 'merge'" 
+              :class="['mode-btn', { active: importMode === 'merge' }]"
+              title="重合模式：跳过已存在的项目"
+            >
+              重合
+            </button>
+            <button 
+              @click="importMode = 'overwrite'" 
+              :class="['mode-btn', { active: importMode === 'overwrite' }]"
+              title="覆盖模式：删除所有现有项目后导入"
+            >
+              覆盖
+            </button>
+          </div>
+        </div>
         <input
           ref="fileInput"
           type="file"
@@ -77,6 +95,9 @@ defineEmits<{
 // 获取watchlist store实例
 const watchlistStore = useWatchlistStore();
 
+// 导入模式状态
+const importMode = ref<'merge' | 'overwrite'>('merge');
+
 // 文件输入引用
 const fileInput = ref<HTMLInputElement>();
 
@@ -97,8 +118,17 @@ const handleFileImport = async (event: Event) => {
   
   if (!file) return;
   
+  // 如果是覆盖模式，先确认
+  if (importMode.value === 'overwrite') {
+    const confirmed = confirm('覆盖模式将删除所有现有的待看项目，确定要继续吗？');
+    if (!confirmed) {
+      target.value = '';
+      return;
+    }
+  }
+  
   try {
-    const result = await watchlistStore.importWatchlist(file);
+    const result = await watchlistStore.importWatchlist(file, importMode.value);
     
     if (result.success) {
       alert(result.message);
@@ -219,6 +249,49 @@ const handleFileImport = async (event: Event) => {
   height: 14px;
 }
 
+/* 导入区域样式 */
+.import-section {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  position: relative;
+}
+
+.import-mode-selector {
+  display: flex;
+  background: var(--color-bg-tertiary);
+  border-radius: 4px;
+  padding: 2px;
+  gap: 2px;
+}
+
+.mode-btn {
+  padding: 4px 8px;
+  font-size: 11px;
+  border: none;
+  border-radius: 3px;
+  background: transparent;
+  color: var(--color-text-secondary);
+  cursor: pointer;
+  transition: all 0.2s ease;
+  white-space: nowrap;
+}
+
+.mode-btn:hover {
+  background: var(--color-bg-hover);
+  color: var(--color-text-primary);
+}
+
+.mode-btn.active {
+  background: var(--color-primary);
+  color: white;
+  font-weight: 500;
+}
+
+.mode-btn.active:hover {
+  background: var(--color-primary-dark);
+}
+
 /* 响应式设计 */
 @media (max-width: 768px) {
   .watchlist-panel {
diff --git a/ui/src/stores/watchlist.ts b/ui/src/stores/watchlist.ts
index 2db3916..cee49d6 100644
--- a/ui/src/stores/watchlist.ts
+++ b/ui/src/stores/watchlist.ts
@@ -211,7 +211,7 @@ export const useWatchlistStore = defineStore('watchlist', () => {
   };
 
   // 导入待看名单数据
-  const importWatchlist = async (file: File) => {
+  const importWatchlist = async (file: File, importMode: 'merge' | 'overwrite' = 'merge') => {
     try {
       const text = await file.text();
       const importData = JSON.parse(text);
@@ -225,11 +225,25 @@ export const useWatchlistStore = defineStore('watchlist', () => {
       let successCount = 0;
       let skipCount = 0;
       let errorCount = 0;
+      let deletedCount = 0;
+      
+      // 如果是覆盖模式，先删除所有现有项目
+      if (importMode === 'overwrite') {
+        const allItems = items.value;
+        for (const item of allItems) {
+          try {
+            await deleteItem(item.id);
+            deletedCount++;
+          } catch (err) {
+            console.error('删除项目失败:', item, err);
+          }
+        }
+      }
       
       for (const item of importData.items) {
         try {
-          // 检查是否已存在（使用路径比较）
-          if (hasUrl(item.url)) {
+          // 在重合模式下检查是否已存在
+          if (importMode === 'merge' && hasUrl(item.url)) {
             skipCount++;
             continue;
           }
@@ -251,17 +265,24 @@ export const useWatchlistStore = defineStore('watchlist', () => {
         }
       }
       
+      let message = '';
+      if (importMode === 'overwrite') {
+        message = `覆盖导入完成：删除 ${deletedCount} 项，成功添加 ${successCount} 项，失败 ${errorCount} 项`;
+      } else {
+        message = `重合导入完成：成功 ${successCount} 项，跳过 ${skipCount} 项，失败 ${errorCount} 项`;
+      }
+      
       return {
         success: true,
-        message: `导入完成：成功 ${successCount} 项，跳过 ${skipCount} 项，失败 ${errorCount} 项`,
-        stats: { successCount, skipCount, errorCount }
+        message,
+        stats: { successCount, skipCount, errorCount, deletedCount }
       };
     } catch (err) {
       console.error('导入失败:', err);
       return {
         success: false,
         message: err instanceof Error ? err.message : '导入失败',
-        stats: { successCount: 0, skipCount: 0, errorCount: 0 }
+        stats: { successCount: 0, skipCount: 0, errorCount: 0, deletedCount: 0 }
       };
     }
   };