diff --git a/src/components/sidebar/ConnectionTree.vue b/src/components/sidebar/ConnectionTree.vue
index 2da4a9e43..73f557c9c 100644
--- a/src/components/sidebar/ConnectionTree.vue
+++ b/src/components/sidebar/ConnectionTree.vue
@@ -1,14 +1,57 @@
 <script setup lang="ts">
 import { ref, computed } from "vue";
 import { useI18n } from "vue-i18n";
-import { Search, X } from "lucide-vue-next";
+import { Search, X, ListFilter, Check } from "lucide-vue-next";
 import { useConnectionStore } from "@/stores/connectionStore";
 import type { TreeNode } from "@/types/database";
 import TreeItem from "./TreeItem.vue";
+import DatabaseIcon from "@/components/icons/DatabaseIcon.vue";
+import {
+  DropdownMenu,
+  DropdownMenuTrigger,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuLabel,
+  DropdownMenuSeparator,
+} from "@/components/ui/dropdown-menu";
 
 const { t } = useI18n();
 const store = useConnectionStore();
 const searchQuery = ref("");
+const selectedTypes = ref<string[]>([]);
+
+const typeStats = computed(() => {
+  const map = new Map<string, { profile: string; label: string; count: number }>();
+  for (const c of store.connections) {
+    const profile = c.driver_profile || c.db_type;
+    const existing = map.get(profile);
+    if (existing) {
+      existing.count++;
+    } else {
+      map.set(profile, { profile, label: c.driver_label || profile, count: 1 });
+    }
+  }
+  return [...map.values()].sort((a, b) => a.label.localeCompare(b.label));
+});
+
+const hasTypeFilter = computed(() => selectedTypes.value.length > 0);
+
+function isTypeSelected(profile: string) {
+  return selectedTypes.value.includes(profile);
+}
+
+function toggleType(profile: string) {
+  const idx = selectedTypes.value.indexOf(profile);
+  if (idx >= 0) {
+    selectedTypes.value.splice(idx, 1);
+  } else {
+    selectedTypes.value.push(profile);
+  }
+}
+
+function clearTypeFilter() {
+  selectedTypes.value = [];
+}
 
 function matchesQuery(node: TreeNode, q: string): boolean {
   if (node.label.toLowerCase().includes(q)) return true;
@@ -25,30 +68,83 @@ function filterTree(nodes: TreeNode[], q: string): TreeNode[] {
     });
 }
 
+function matchesType(node: TreeNode): boolean {
+  if (node.type !== "connection" || !node.connectionId) return true;
+  const config = store.getConfig(node.connectionId);
+  if (!config) return true;
+  const profile = config.driver_profile || config.db_type;
+  return selectedTypes.value.includes(profile);
+}
+
 const filteredNodes = computed(() => {
+  let nodes = store.treeNodes;
+
+  if (hasTypeFilter.value) {
+    nodes = nodes.filter(matchesType);
+  }
+
   const q = searchQuery.value.trim().toLowerCase();
-  if (!q) return store.treeNodes;
-  return filterTree(store.treeNodes, q);
+  if (q) {
+    nodes = filterTree(nodes, q);
+  }
+
+  return nodes;
 });
 </script>
 
 <template>
   <div class="text-sm select-none">
     <div v-if="store.treeNodes.length > 0" class="sticky top-0 z-10 bg-background px-2 py-1">
-      <div class="relative">
-        <Search class="absolute left-2 top-1/2 -translate-y-1/2 h-3 w-3 text-muted-foreground" />
-        <input
-          v-model="searchQuery"
-          class="w-full h-6 pl-7 pr-6 text-xs rounded border border-border bg-background focus:outline-none focus:ring-1 focus:ring-ring"
-          :placeholder="t('grid.search')"
-        />
-        <button
-          v-if="searchQuery"
-          class="absolute right-1.5 top-1/2 -translate-y-1/2 text-muted-foreground hover:text-foreground"
-          @click="searchQuery = ''"
-        >
-          <X class="h-3 w-3" />
-        </button>
+      <div class="relative flex items-center gap-1">
+        <div class="relative flex-1">
+          <Search class="absolute left-2 top-1/2 -translate-y-1/2 h-3 w-3 text-muted-foreground" />
+          <input
+            v-model="searchQuery"
+            class="w-full h-6 pl-7 pr-6 text-xs rounded border border-border bg-background focus:outline-none focus:ring-1 focus:ring-ring"
+            :placeholder="t('grid.search')"
+          />
+          <button
+            v-if="searchQuery"
+            class="absolute right-1.5 top-1/2 -translate-y-1/2 text-muted-foreground hover:text-foreground"
+            @click="searchQuery = ''"
+          >
+            <X class="h-3 w-3" />
+          </button>
+        </div>
+        <DropdownMenu v-if="typeStats.length > 1">
+          <DropdownMenuTrigger as-child>
+            <button
+              class="shrink-0 h-6 w-6 flex items-center justify-center rounded border border-border hover:bg-accent"
+              :class="hasTypeFilter ? 'text-primary bg-primary/10 border-primary/30' : 'text-muted-foreground'"
+              :title="t('sidebar.filterByType')"
+            >
+              <ListFilter class="h-3.5 w-3.5" />
+            </button>
+          </DropdownMenuTrigger>
+          <DropdownMenuContent align="end" class="w-48">
+            <DropdownMenuLabel class="text-xs">{{ t('sidebar.filterByType') }}</DropdownMenuLabel>
+            <DropdownMenuSeparator />
+            <DropdownMenuItem
+              v-for="item in typeStats"
+              :key="item.profile"
+              class="gap-2"
+              :class="isTypeSelected(item.profile) ? 'bg-primary/10 text-primary' : ''"
+              @select.prevent="toggleType(item.profile)"
+            >
+              <Check v-if="isTypeSelected(item.profile)" class="h-3.5 w-3.5 shrink-0 text-primary" />
+              <span v-else class="h-3.5 w-3.5 shrink-0" />
+              <DatabaseIcon :db-type="item.profile" class="h-4 w-4 shrink-0" />
+              <span class="flex-1 truncate">{{ item.label }}</span>
+              <span class="text-muted-foreground text-xs">{{ item.count }}</span>
+            </DropdownMenuItem>
+            <template v-if="hasTypeFilter">
+              <DropdownMenuSeparator />
+              <DropdownMenuItem @select.prevent="clearTypeFilter">
+                <span class="text-xs text-muted-foreground">{{ t('sidebar.clearFilter') }}</span>
+              </DropdownMenuItem>
+            </template>
+          </DropdownMenuContent>
+        </DropdownMenu>
       </div>
     </div>
     <TreeItem v-for="node in filteredNodes" :key="node.id" :node="node" :depth="0" />
diff --git a/src/i18n/locales/en.ts b/src/i18n/locales/en.ts
index 0d9177a29..c7e2a368e 100644
--- a/src/i18n/locales/en.ts
+++ b/src/i18n/locales/en.ts
@@ -29,6 +29,8 @@ export default {
     import: "Import Connections",
     export: "Export Connections",
     showMore: "Show {count} more...",
+    filterByType: "Filter by type",
+    clearFilter: "Clear filter",
   },
   connection: {
     title: "New Connection",
diff --git a/src/i18n/locales/zh-CN.ts b/src/i18n/locales/zh-CN.ts
index b8fe48670..f85562083 100644
--- a/src/i18n/locales/zh-CN.ts
+++ b/src/i18n/locales/zh-CN.ts
@@ -29,6 +29,8 @@ export default {
     import: "导入连接",
     export: "导出连接",
     showMore: "加载更多 ({count})...",
+    filterByType: "按类型筛选",
+    clearFilter: "清除筛选",
   },
   connection: {
     title: "新建连接",