diff --git a/src/components/modals/ExportModal.vue b/src/components/modals/ExportModal.vue
index 46ba63e..8538aed 100644
--- a/src/components/modals/ExportModal.vue
+++ b/src/components/modals/ExportModal.vue
@@ -1,9 +1,8 @@
 <script setup lang="ts">
 import { ref, computed, onMounted, onUnmounted } from "vue";
 import { invoke } from "@tauri-apps/api/core";
-import { save } from "@tauri-apps/plugin-dialog";
-import { X, Calendar, ChevronLeft, ChevronRight } from "lucide-vue-next";
-import { currentDate, showToast, getTagName, logicalMinutesToTime, toISODate } from "../../store";
+import { X, Calendar, ChevronLeft, ChevronRight, Copy } from "lucide-vue-next";
+import { currentDate, showToast, getTagName, logicalMinutesToTime, toISODate, mainTags } from "../../store";
 import { DBEvent } from "../../types";
 
 defineEmits(['close']);
@@ -18,6 +17,21 @@ const exportEndMonth = ref(new Date(exportEndDate.value));
 const isExportStartCalendarOpen = ref(false);
 const isExportEndCalendarOpen = ref(false);
 
+// 选择的主标签，默认全选
+const selectedTags = ref<number[]>(mainTags.value.map(t => t.id));
+
+// 表格数据
+const dateList = ref<string[]>([]);
+const previewData = ref<Record<string, Record<number, string>>>({});
+
+const toggleTag = (id: number) => {
+  if (selectedTags.value.includes(id)) {
+    selectedTags.value = selectedTags.value.filter(tId => tId !== id);
+  } else {
+    selectedTags.value.push(id);
+  }
+};
+
 const handleClickOutside = (event: MouseEvent) => {
   const target = event.target as HTMLElement;
   if (isExportStartCalendarOpen.value && startCalendarRef.value && !startCalendarRef.value.contains(target)) {
@@ -60,43 +74,110 @@ const exportEndCalendarDays = computed(() => {
   return days;
 });
 
-const handleExport = async () => {
+const parseDateStr = (str: string) => {
+  const [y, m, d] = str.split('-').map(Number);
+  return new Date(y, m - 1, d);
+};
+
+const handlePreview = async () => {
+  if (selectedTags.value.length === 0) {
+    showToast("请至少选择一个主标签", "error");
+    return;
+  }
+
+  const curDate = parseDateStr(exportStartDate.value);
+  const endDate = parseDateStr(exportEndDate.value);
+  
+  if (curDate > endDate) {
+    showToast("开始日期不能晚于结束日期", "error");
+    return;
+  }
+
   try {
     const events: DBEvent[] = await invoke("get_events_range", { startDate: exportStartDate.value, endDate: exportEndDate.value });
-    if (events.length === 0) {
-      showToast("所选范围内没有找到记录", "error");
-      return;
+    
+    // 生成日期范围列表
+    const dates: string[] = [];
+    let tempDate = new Date(curDate);
+    while (tempDate <= endDate) {
+      dates.push(toISODate(tempDate));
+      tempDate.setDate(tempDate.getDate() + 1);
     }
-    const savePath = await save({
-      filters: [{ name: "JSON 文件", extensions: ["json"] }],
-      defaultPath: `ChronoSnap_Export_${exportStartDate.value}_${exportEndDate.value}.json`
+    dateList.value = dates;
+
+    // 过滤选中的主标签并构建矩阵
+    const matrix: Record<string, Record<number, string>> = {};
+    dates.forEach(d => matrix[d] = {});
+
+    const filteredEvents = events.filter(e => selectedTags.value.includes(e.main_tag_id));
+
+    filteredEvents.forEach(e => {
+       if (!matrix[e.date]) matrix[e.date] = {}; // 容错
+       
+       const cellArr = matrix[e.date][e.main_tag_id] ? matrix[e.date][e.main_tag_id].split('\n') : [];
+       const startTime = logicalMinutesToTime(e.start_minute);
+       const endTime = logicalMinutesToTime(e.end_minute);
+       const subTag = getTagName(e.sub_tag_id);
+       // 替换换行符为空格
+       const content = e.content ? e.content.replace(/\n/g, ' ') : '';
+
+       let line = `${startTime}-${endTime}`;
+       if (subTag) line += ` ${subTag}`;
+       if (content) line += ` ${content}`;
+
+       cellArr.push(line);
+       matrix[e.date][e.main_tag_id] = cellArr.join('\n');
     });
-    if (savePath) {
-      const exportData = events.map(e => ({
-        date: e.date,
-        start_time: logicalMinutesToTime(e.start_minute),
-        end_time: logicalMinutesToTime(e.end_minute),
-        main_tag: getTagName(e.main_tag_id),
-        sub_tag: getTagName(e.sub_tag_id),
-        content: e.content
-      }));
-      await invoke("write_file", { path: savePath, content: JSON.stringify(exportData, null, 2) });
-      showToast("导出成功");
-    }
+
+    previewData.value = matrix;
+
   } catch (e) {
-    showToast("导出失败: " + e, "error");
+    showToast("获取数据失败: " + e, "error");
+  }
+};
+
+const copyToClipboard = async () => {
+  // 生成适合 Excel 的 TSV (Tab-Separated Values) 格式
+  const header = ["日期", ...selectedTags.value.map(id => getTagName(id))];
+  let tsv = header.join("\t") + "\n";
+  
+  for (const date of dateList.value) {
+    let row = [date];
+    for (const tagId of selectedTags.value) {
+      let cellStr = previewData.value[date][tagId] || "";
+      // Excel/Sheets 处理带换行符的单元格，需要用双引号包围，且内容中的双引号要转义为两个双引号
+      if (cellStr.includes('\n') || cellStr.includes('\t') || cellStr.includes('"')) {
+         cellStr = `"${cellStr.replace(/"/g, '""')}"`;
+      }
+      row.push(cellStr);
+    }
+    tsv += row.join("\t") + "\n";
+  }
+
+  try {
+    await navigator.clipboard.writeText(tsv);
+    showToast("表格已复制，可直接粘贴到 Excel");
+  } catch(err) {
+    showToast("复制失败", "error");
   }
 };
 </script>
 
 <template>
   <div class="fixed inset-0 z-100 bg-black/40 backdrop-blur-sm flex items-center justify-center p-6" @click.self="$emit('close')">
-    <div class="bg-bg-card rounded-[40px] shadow-2xl w-full max-w-2xl overflow-visible flex flex-col animate-in fade-in zoom-in duration-200">
-      <div class="p-8 border-b flex justify-between items-center"><h2 class="text-2xl font-bold">导出记录</h2><button @click="$emit('close')"><X :size="24" /></button></div>
-      <div class="p-10 space-y-8">
-        <div class="space-y-4">
+    <div class="bg-bg-card rounded-[40px] shadow-2xl w-full flex flex-col animate-in fade-in zoom-in duration-300 transition-all" 
+         :class="dateList.length > 0 ? 'max-w-[90vw] md:max-w-6xl h-[90vh] overflow-hidden' : 'max-w-4xl min-h-[500px]'">
+      <div class="p-8 border-b flex justify-between items-center flex-shrink-0">
+        <h2 class="text-2xl font-bold">导出记录</h2>
+        <button @click="$emit('close')" class="hover:bg-bg-input p-2 rounded-full transition-colors"><X :size="24" /></button>
+      </div>
+      
+      <div class="p-8 flex-1 flex flex-col gap-8 no-scrollbar" :class="dateList.length > 0 ? 'overflow-y-auto' : 'overflow-visible'">
+        <!-- 配置区域 -->
+        <div class="space-y-6 flex-shrink-0">
+          <!-- 日期选择 -->
           <div class="space-y-2">
-            <label class="text-[10px] font-bold text-text-sec">日期范围</label>
+            <label class="text-[11px] font-bold text-text-sec">日期范围</label>
             <div class="flex gap-4 items-center">
               <div class="relative flex-1" ref="startCalendarRef">
                 <button @click="isExportStartCalendarOpen = !isExportStartCalendarOpen; isExportEndCalendarOpen = false" class="w-full bg-bg-input rounded-xl pl-10 pr-4 py-3 text-sm outline-none border border-transparent focus:border-[#007AFF] transition-all text-left flex items-center">
@@ -139,9 +220,60 @@ const handleExport = async () => {
               </div>
             </div>
           </div>
+
+          <!-- 主标签选择 -->
+          <div class="space-y-2">
+            <label class="text-[11px] font-bold text-text-sec">选择要导出的主标签</label>
+            <div class="flex flex-wrap gap-2">
+              <button v-for="tag in mainTags" :key="tag.id"
+                @click="toggleTag(tag.id)"
+                class="px-3 py-1.5 rounded-xl text-[12px] font-bold border-2 transition-all active:scale-95"
+                :style="selectedTags.includes(tag.id) ? { backgroundColor: tag.color, borderColor: tag.color, color: 'white' } : { borderColor: tag.color, color: tag.color }"
+              >
+                {{ tag.name }}
+              </button>
+            </div>
+          </div>
+
+          <button @click="handlePreview" :disabled="!exportStartDate || !exportEndDate" class="w-full bg-bg-main border border-border-main text-text-main hover:bg-bg-input py-3.5 rounded-2xl font-bold shadow-sm transition-all disabled:opacity-50">
+            生成预览表格
+          </button>
         </div>
-        <button @click="handleExport" :disabled="!exportStartDate || !exportEndDate" class="w-full bg-[#007AFF] text-white py-4 rounded-2xl font-bold shadow-lg shadow-[#007AFF]/20 active:scale-95 transition-all disabled:opacity-50 disabled:active:scale-100">导出为 JSON</button>
+
+        <!-- 表格预览区域 -->
+        <div v-if="dateList.length > 0" class="flex-1 flex flex-col border-t border-border-main pt-6">
+          <div class="flex justify-between items-center mb-4 flex-shrink-0">
+            <h3 class="text-sm font-bold text-text-sec flex items-center gap-2">数据预览</h3>
+            <button @click="copyToClipboard" class="flex items-center gap-1.5 px-4 py-2 bg-[#007AFF] hover:bg-[#007AFF]/90 text-white rounded-xl text-xs font-bold transition-all shadow-lg shadow-[#007AFF]/20 active:scale-95">
+              <Copy :size="14" /> 一键复制完整表格
+            </button>
+          </div>
+          
+          <div class="flex-1 overflow-auto border border-border-main rounded-2xl bg-bg-input/30 relative select-text">
+            <table class="w-full text-left border-collapse text-xs">
+              <thead class="bg-bg-card sticky top-0 z-10 shadow-sm">
+                <tr>
+                  <th class="p-4 border-b border-border-main font-bold whitespace-nowrap text-text-sec w-32">日期</th>
+                  <th v-for="tagId in selectedTags" :key="tagId" class="p-4 border-b border-l border-border-main/50 font-bold whitespace-nowrap" :style="{ color: mainTags.find(t => t.id === tagId)?.color || 'inherit' }">
+                    {{ getTagName(tagId) }}
+                  </th>
+                </tr>
+              </thead>
+              <tbody class="bg-bg-card">
+                <tr v-for="date in dateList" :key="date" class="border-b border-border-main/30 hover:bg-bg-input/50 transition-colors">
+                  <td class="p-4 font-bold whitespace-nowrap text-text-main align-top">
+                    {{ date }}
+                  </td>
+                  <td v-for="tagId in selectedTags" :key="tagId" class="p-4 border-l border-border-main/30 align-top whitespace-pre-wrap leading-relaxed text-text-sec min-w-[150px]">
+                    {{ previewData[date]?.[tagId] || '' }}
+                  </td>
+                </tr>
+              </tbody>
+            </table>
+          </div>
+        </div>
+
       </div>
     </div>
   </div>
-</template>
+</template>
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