diff --git a/internal/store/store_query.go b/internal/store/store_query.go
index 7de7487..c02f8b3 100644
--- a/internal/store/store_query.go
+++ b/internal/store/store_query.go
@@ -339,6 +339,19 @@ func applyDiscardDetailsFilters(q *gorm.DB, opts ListOptions) *gorm.DB {
 	return q
 }
 
+func (s *Store) DeleteDiscardDetailsByIDs(ids []uint64) (int64, error) {
+	if len(ids) == 0 {
+		return 0, nil
+	}
+	result := s.db.Where("id IN ?", ids).Delete(&DiscardDetailsRecord{})
+	return result.RowsAffected, result.Error
+}
+
+func (s *Store) DeleteAllDiscardDetails() (int64, error) {
+	result := s.db.Where("1 = 1").Delete(&DiscardDetailsRecord{})
+	return result.RowsAffected, result.Error
+}
+
 func (s *Store) DeleteTextMessage(id uint64) error {
 	result := s.db.Where("id = ?", id).Delete(&TextMessageRecord{})
 	if result.Error != nil {
diff --git a/internal/web/web.go b/internal/web/web.go
index 279a0be..300966a 100644
--- a/internal/web/web.go
+++ b/internal/web/web.go
@@ -84,7 +84,7 @@ func NewRouter(cfg configpkg.WebConfig, consoleLog bool, store *storepkg.Store,
 	return r
 }
 
-const BackendVersion = "1.1.0"
+const BackendVersion = "1.2.0"
 
 var CommitVersion = "dev"
 
@@ -399,6 +399,33 @@ func registerAdminRoutes(r gin.IRouter, store *storepkg.Store, sessions *auth.Ma
 		rows, err := store.ListLoginLogs(opts)
 		writeListResponse(c, rows, opts, err, loginLogDTO)
 	})
+	protected.POST("/discard-details/batch-delete", func(c *gin.Context) {
+		var req struct {
+			IDs []uint64 `json:"ids"`
+		}
+		if err := c.ShouldBindJSON(&req); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+		if len(req.IDs) == 0 {
+			c.JSON(http.StatusBadRequest, gin.H{"error": "ids is empty"})
+			return
+		}
+		count, err := store.DeleteDiscardDetailsByIDs(req.IDs)
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"status": "ok", "deleted_count": count})
+	})
+	protected.DELETE("/discard-details", func(c *gin.Context) {
+		count, err := store.DeleteAllDiscardDetails()
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"status": "ok", "deleted_count": count})
+	})
 	protected.DELETE("/text-messages/:id", func(c *gin.Context) {
 		id, err := strconv.ParseUint(c.Param("id"), 10, 64)
 		if err != nil || id == 0 {
diff --git a/meshmap_frontend/src/api.ts b/meshmap_frontend/src/api.ts
index a99fb55..a0c3a46 100644
--- a/meshmap_frontend/src/api.ts
+++ b/meshmap_frontend/src/api.ts
@@ -235,6 +235,14 @@ export function getDiscardDetails(limit = 100, offset = 0): Promise<ListResponse
   return getJSON<ListResponse<DiscardDetails>>(listPath('/api/discard-details', limit, offset))
 }
 
+export function deleteDiscardDetailsByIDs(ids: number[]): Promise<{ status: string; deleted_count: number }> {
+  return postJSON<{ status: string; deleted_count: number }>('/api/admin/discard-details/batch-delete', { ids })
+}
+
+export function clearDiscardDetails(): Promise<{ status: string; deleted_count: number }> {
+  return deleteJSON<{ status: string; deleted_count: number }>('/api/admin/discard-details')
+}
+
 export function getTelemetry(limit = 500, offset = 0, nodeId = ''): Promise<ListResponse<TelemetryRecord>> {
   return getJSON<ListResponse<TelemetryRecord>>(listPath('/api/telemetry', limit, offset, nodeId))
 }
diff --git a/meshmap_frontend/src/components/AdminDiscardDetails.vue b/meshmap_frontend/src/components/AdminDiscardDetails.vue
index 328bfd8..c82675b 100644
--- a/meshmap_frontend/src/components/AdminDiscardDetails.vue
+++ b/meshmap_frontend/src/components/AdminDiscardDetails.vue
@@ -1,7 +1,8 @@
 <script setup lang="ts">
-import { onMounted, ref } from 'vue'
-import { getDiscardDetails } from '../api'
+import { computed, onMounted, ref } from 'vue'
+import { clearDiscardDetails, deleteDiscardDetailsByIDs, getDiscardDetails } from '../api'
 import type { DiscardDetails } from '../types'
+import ConfirmDeleteModal from './ConfirmDeleteModal.vue'
 
 const items = ref<DiscardDetails[]>([])
 const loading = ref(false)
@@ -9,9 +10,48 @@ const error = ref('')
 const page = ref(1)
 const pageSize = 25
 
+const selectedIds = ref<Set<number>>(new Set())
+const pendingAction = ref<'batch' | 'clear' | null>(null)
+
 const canPrev = () => page.value > 1
 const canNext = () => items.value.length === pageSize
 
+const allSelected = computed(
+  () => items.value.length > 0 && items.value.every((item) => selectedIds.value.has(item.id)),
+)
+const someSelected = computed(() => selectedIds.value.size > 0 && !allSelected.value)
+const selectedCount = computed(() => selectedIds.value.size)
+
+const modalTitle = computed(() =>
+  pendingAction.value === 'clear' ? '清空丢弃数据' : '批量删除丢弃数据',
+)
+const modalMessage = computed(() =>
+  pendingAction.value === 'clear'
+    ? '确定要清空全部丢弃数据吗？此操作不可撤销。'
+    : `确定要删除选中的 ${selectedCount.value} 条丢弃数据吗？此操作不可撤销。`,
+)
+const modalConfirmText = computed(() =>
+  pendingAction.value === 'clear' ? '清空全部' : '删除',
+)
+
+function toggleAll(checked: boolean) {
+  if (checked) {
+    items.value.forEach((item) => selectedIds.value.add(item.id))
+  } else {
+    selectedIds.value.clear()
+  }
+  selectedIds.value = new Set(selectedIds.value)
+}
+
+function toggleRow(id: number, checked: boolean) {
+  if (checked) {
+    selectedIds.value.add(id)
+  } else {
+    selectedIds.value.delete(id)
+  }
+  selectedIds.value = new Set(selectedIds.value)
+}
+
 function formatTime(value: string): string {
   return new Date(value).toLocaleString()
 }
@@ -31,9 +71,43 @@ async function refreshItems() {
 
 function changePage(nextPage: number) {
   page.value = Math.max(1, nextPage)
+  selectedIds.value.clear()
+  selectedIds.value = new Set(selectedIds.value)
   refreshItems()
 }
 
+function requestBatchDelete() {
+  if (selectedCount.value === 0) return
+  pendingAction.value = 'batch'
+}
+
+function requestClearAll() {
+  pendingAction.value = 'clear'
+}
+
+function cancelDeleteModal() {
+  pendingAction.value = null
+}
+
+async function confirmDeleteModal() {
+  const action = pendingAction.value
+  pendingAction.value = null
+  if (!action) return
+  try {
+    if (action === 'clear') {
+      await clearDiscardDetails()
+    } else {
+      await deleteDiscardDetailsByIDs([...selectedIds.value])
+    }
+    selectedIds.value.clear()
+    selectedIds.value = new Set(selectedIds.value)
+    page.value = 1
+    await refreshItems()
+  } catch (err) {
+    error.value = err instanceof Error ? err.message : String(err)
+  }
+}
+
 onMounted(refreshItems)
 </script>
 
@@ -45,7 +119,19 @@ onMounted(refreshItems)
           <p class="eyebrow">Discard details</p>
           <h2>丢弃数据</h2>
         </div>
-        <button class="admin-button" @click="refreshItems" :disabled="loading">{{ loading ? '刷新中...' : '刷新数据' }}</button>
+        <div style="display: flex; gap: 8px;">
+          <button
+            class="admin-button admin-button-danger"
+            :disabled="loading || selectedCount === 0"
+            @click="requestBatchDelete"
+          >批量删除{{ selectedCount > 0 ? `（${selectedCount}）` : '' }}</button>
+          <button
+            class="admin-button admin-button-danger"
+            :disabled="loading"
+            @click="requestClearAll"
+          >清空全部</button>
+          <button class="admin-button" @click="refreshItems" :disabled="loading">{{ loading ? '刷新中...' : '刷新数据' }}</button>
+        </div>
       </div>
 
       <p v-if="error" class="error">{{ error }}</p>
@@ -53,6 +139,15 @@ onMounted(refreshItems)
         <table class="node-table">
           <thead>
             <tr>
+              <th style="width: 40px;">
+                <input
+                  type="checkbox"
+                  :checked="allSelected"
+                  :indeterminate.prop="someSelected"
+                  :disabled="items.length === 0"
+                  @change="toggleAll(($event.target as HTMLInputElement).checked)"
+                />
+              </th>
               <th>时间</th>
               <th>Topic</th>
               <th>Error</th>
@@ -67,6 +162,13 @@ onMounted(refreshItems)
           </thead>
           <tbody>
             <tr v-for="item in items" :key="item.id">
+              <td>
+                <input
+                  type="checkbox"
+                  :checked="selectedIds.has(item.id)"
+                  @change="toggleRow(item.id, ($event.target as HTMLInputElement).checked)"
+                />
+              </td>
               <td>{{ formatTime(item.created_at) }}</td>
               <td>{{ item.topic || '-' }}</td>
               <td>{{ item.error || '-' }}</td>
@@ -90,5 +192,14 @@ onMounted(refreshItems)
         <button :disabled="loading || !canNext()" @click="changePage(page + 1)">下一页</button>
       </div>
     </div>
+
+    <ConfirmDeleteModal
+      :open="pendingAction !== null"
+      :title="modalTitle"
+      :message="modalMessage"
+      :confirm-text="modalConfirmText"
+      @cancel="cancelDeleteModal"
+      @confirm="confirmDeleteModal"
+    />
   </section>
 </template>
diff --git a/meshmap_frontend/src/version.ts b/meshmap_frontend/src/version.ts
index 2b17820..8c81056 100644
--- a/meshmap_frontend/src/version.ts
+++ b/meshmap_frontend/src/version.ts
@@ -1 +1 @@
-export const FRONTEND_VERSION = '0.2.0'
+export const FRONTEND_VERSION = '0.3.0'