diff --git a/internal/store/db.go b/internal/store/db.go
index 65ce66f..0e53d1a 100644
--- a/internal/store/db.go
+++ b/internal/store/db.go
@@ -439,7 +439,7 @@ type TextMessageRecord struct {
 	Text           *string   `gorm:"column:text"`
 	PayloadHex     *string   `gorm:"column:payload_hex"`
 	Topic          string    `gorm:"column:topic;not null"`
-	ChannelID      *string   `gorm:"column:channel_id"`
+	ChannelID      *string   `gorm:"column:channel_id;index:idx_text_message_channel_id_created_at,priority:1"`
 	GatewayID      *string   `gorm:"column:gateway_id"`
 	PacketID       *int64    `gorm:"column:packet_id;index:idx_text_message_packet_id"`
 	PacketTo       *string   `gorm:"column:packet_to"`
@@ -458,7 +458,7 @@ type TextMessageRecord struct {
 	MQTTRemoteHost *string   `gorm:"column:mqtt_remote_host"`
 	MQTTRemotePort *string   `gorm:"column:mqtt_remote_port"`
 	ContentJSON    string    `gorm:"column:content_json;not null"`
-	CreatedAt      time.Time `gorm:"column:created_at;autoCreateTime;index:idx_text_message_from_num_created_at,priority:2;index:idx_text_message_created_at"`
+	CreatedAt      time.Time `gorm:"column:created_at;autoCreateTime;index:idx_text_message_from_num_created_at,priority:2;index:idx_text_message_created_at;index:idx_text_message_channel_id_created_at,priority:2"`
 }
 
 func (TextMessageRecord) TableName() string {
@@ -707,7 +707,7 @@ func (s *Store) migrate() error {
 			model   any
 			indexes []string
 		}{
-			{label: "text_message", model: &TextMessageRecord{}, indexes: []string{"idx_text_message_from_num_created_at", "idx_text_message_created_at", "idx_text_message_packet_id"}},
+			{label: "text_message", model: &TextMessageRecord{}, indexes: []string{"idx_text_message_from_num_created_at", "idx_text_message_created_at", "idx_text_message_packet_id", "idx_text_message_channel_id_created_at"}},
 			{label: "bot_direct_messages", model: &BotDirectMessageRecord{}, indexes: []string{"idx_bot_dm_bot_peer", "idx_bot_dm_bot_created_at"}},
 			{label: "llm_message_queue", model: &LLMMessageQueueRecord{}, indexes: []string{"idx_llm_queue_bot_created"}},
 		} {
diff --git a/internal/web/web.go b/internal/web/web.go
index e830e21..37eb908 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 = "1.0.0"
+const BackendVersion = "1.1.0"
 
 var CommitVersion = "dev"
 
diff --git a/meshmap_frontend/src/App.vue b/meshmap_frontend/src/App.vue
index 339a12c..533ea45 100644
--- a/meshmap_frontend/src/App.vue
+++ b/meshmap_frontend/src/App.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { computed, onBeforeUnmount, onMounted, ref } from 'vue'
+import { computed, onBeforeUnmount, onMounted, ref, watch } from 'vue'
 import { adminLogout, createNodeBlockingRule, deleteNode, deleteTextMessage, getAdminMe, getHealth, getMapReportViewport, getNodeInfo, getPositions, getTextMessages, purgeNode } from './api'
 import AdminBlockingManagement from './components/AdminBlockingManagement.vue'
 import AdminBot from './components/AdminBot.vue'
@@ -69,6 +69,7 @@ const mapReportTotal = ref(0)
 const mapSources = ref<PublicMapTileSource[]>([fallbackMapSource])
 const mapSource = ref<PublicMapTileSource>(fallbackMapSource)
 const nodeFilter = ref('')
+const channelFilter = ref('')
 const pendingDeleteAction = ref<PendingDeleteAction | null>(null)
 type DeletableTextMessage = TextMessage & { mergedCount?: number; mergedMessages?: TextMessage[] }
 type NodeActionRequest = { nodeId: string; nodeNum: number | null; message?: DeletableTextMessage }
@@ -95,6 +96,7 @@ const nodesById = computed<NodeInfoById>(() => {
 })
 
 const normalizedNodeFilter = computed(() => nodeFilter.value.trim().toLowerCase())
+const normalizedChannelFilter = computed(() => channelFilter.value.trim())
 
 function nodeMatchesFilterByInfo(node: NodeInfo | null | undefined, keyword: string): boolean {
   if (!keyword) {
@@ -298,7 +300,7 @@ function clearSelectedNode() {
 }
 
 async function loadInitialChatMessages() {
-  const response = await getTextMessages(chatPageSize, 0)
+  const response = await getTextMessages(chatPageSize, 0, normalizedChannelFilter.value ? { channelId: normalizedChannelFilter.value } : '')
   messages.value = toChronological(response.items)
   chatHasMore.value = response.items.length === chatPageSize
   chatInitialized.value = true
@@ -311,7 +313,7 @@ async function loadOlderMessages() {
 
   chatLoadingOlder.value = true
   try {
-    const response = await getTextMessages(chatPageSize, messages.value.length)
+    const response = await getTextMessages(chatPageSize, messages.value.length, normalizedChannelFilter.value ? { channelId: normalizedChannelFilter.value } : '')
     messages.value = mergeMessages(messages.value, toChronological(response.items))
     chatHasMore.value = response.items.length === chatPageSize
   } catch (err) {
@@ -322,10 +324,23 @@ async function loadOlderMessages() {
 }
 
 async function pollLatestMessages() {
-  const response = await getTextMessages(chatPageSize, 0)
+  const response = await getTextMessages(chatPageSize, 0, normalizedChannelFilter.value ? { channelId: normalizedChannelFilter.value } : '')
   messages.value = mergeMessages(messages.value, toChronological(response.items))
 }
 
+let channelFilterTimer: number | undefined
+watch(normalizedChannelFilter, () => {
+  if (channelFilterTimer !== undefined) {
+    window.clearTimeout(channelFilterTimer)
+  }
+  channelFilterTimer = window.setTimeout(() => {
+    messages.value = []
+    chatHasMore.value = true
+    chatInitialized.value = false
+    loadInitialChatMessages()
+  }, 400)
+})
+
 async function loadNodePage(page: number, showLoading = true) {
   if (showLoading) {
     nodePageLoading.value = true
@@ -676,6 +691,9 @@ onBeforeUnmount(() => {
   if (mapBoundsTimer !== undefined) {
     window.clearTimeout(mapBoundsTimer)
   }
+  if (channelFilterTimer !== undefined) {
+    window.clearTimeout(channelFilterTimer)
+  }
 })
 </script>
 
@@ -739,6 +757,20 @@ onBeforeUnmount(() => {
               @click="nodeFilter = ''"
             >清除</button>
           </div>
+          <div class="topbar-filter">
+            <input
+              type="search"
+              class="topbar-filter-input"
+              v-model="channelFilter"
+              placeholder="筛选频道"
+            />
+            <button
+              v-if="normalizedChannelFilter"
+              type="button"
+              class="topbar-filter-clear"
+              @click="channelFilter = ''"
+            >清除</button>
+          </div>
           <a class="topbar-link" href="/signed">签到列表</a>
           <a class="topbar-link" href="/help">使用帮助</a>
           <a class="topbar-link" href="/admin">管理</a>
diff --git a/meshmap_frontend/src/version.ts b/meshmap_frontend/src/version.ts
index cb9e0be..2b17820 100644
--- a/meshmap_frontend/src/version.ts
+++ b/meshmap_frontend/src/version.ts
@@ -1 +1 @@
-export const FRONTEND_VERSION = '0.1.2'
+export const FRONTEND_VERSION = '0.2.0'