diff --git a/frontend/src/components/Sidebar.locate-toolbar.test.tsx b/frontend/src/components/Sidebar.locate-toolbar.test.tsx
index 3c2a9000..786cf0f8 100644
--- a/frontend/src/components/Sidebar.locate-toolbar.test.tsx
+++ b/frontend/src/components/Sidebar.locate-toolbar.test.tsx
@@ -70,6 +70,7 @@ const readSidebarSource = () => [
   readSourceFile('./sidebar/SidebarExternalSqlWorkflow.tsx'),
   readSourceFile('./sidebar/useSidebarTreeLoaders.tsx'),
   readSourceFile('./sidebar/SidebarEntityModals.tsx'),
+  readSourceFile('./sidebar/SidebarTreeTitle.tsx'),
   readSourceFile('./sidebarV2Utils.ts'),
 ].join('\n');
 const readLegacyNodeMenuSource = () => readSourceFile('./sidebar/sidebarLegacyNodeMenu.tsx');
@@ -2340,9 +2341,9 @@ describe('Sidebar locate toolbar', () => {
     const externalSqlFlowStart = source.indexOf('const handleAddExternalSQLDirectory = async (node: any) => {');
     const externalSqlFlowEnd = source.indexOf('const cancelSQLFileExecution = () => {', externalSqlFlowStart);
     const externalSqlFlowSource = source.slice(externalSqlFlowStart, externalSqlFlowEnd);
-    const treeTitleStart = source.indexOf('const renderV2TreeTitle = (node: any, hoverTitle: string, statusBadge: React.ReactNode) => {');
-    const treeTitleEnd = source.indexOf('const selectConnectionFromRail', treeTitleStart);
-    const treeTitleSource = source.slice(treeTitleStart, treeTitleEnd);
+    const treeTitleSource = readSourceFile('./sidebar/SidebarTreeTitle.tsx');
+    const treeTitleStart = 0;
+    const treeTitleEnd = treeTitleSource.length;
     const externalSqlMenuStart = legacyMenuSource.indexOf("if (node.type === 'external-sql-root') {", legacyMenuSource.indexOf('// 已存查询节点的右键菜单'));
     const externalSqlMenuEnd = legacyMenuSource.indexOf("if (node.type === 'external-sql-directory') {", externalSqlMenuStart);
     const externalSqlMenuSource = legacyMenuSource.slice(externalSqlMenuStart, externalSqlMenuEnd);
@@ -2593,11 +2594,12 @@ describe('Sidebar locate toolbar', () => {
       expect(tableGroupCallSource).not.toContain(rawSnippet);
     });
 
-    const treeTitleStart = sidebarSource.indexOf('const renderV2TreeTitle');
-    const treeTitleEnd = sidebarSource.indexOf('const selectConnectionFromRail', treeTitleStart);
+    const treeTitleModuleSource = readSourceFile('./sidebar/SidebarTreeTitle.tsx');
+    const treeTitleStart = treeTitleModuleSource.indexOf('export const renderSidebarV2TreeTitle');
+    const treeTitleEnd = treeTitleModuleSource.length;
     expect(treeTitleStart).toBeGreaterThanOrEqual(0);
     expect(treeTitleEnd).toBeGreaterThan(treeTitleStart);
-    const treeTitleSource = sidebarSource.slice(treeTitleStart, treeTitleEnd);
+    const treeTitleSource = treeTitleModuleSource.slice(treeTitleStart, treeTitleEnd);
     expect(treeTitleSource).toContain('const objectGroupTitle = resolveV2ObjectGroupTitle(node);');
     expect(treeTitleSource).toContain('if (objectGroupTitle) return objectGroupTitle;');
 
diff --git a/frontend/src/components/Sidebar.tsx b/frontend/src/components/Sidebar.tsx
index 41176a82..e87f1931 100644
--- a/frontend/src/components/Sidebar.tsx
+++ b/frontend/src/components/Sidebar.tsx
@@ -19,6 +19,7 @@ import {
 } from './sidebar/useSidebarBatchExport';
 import { SidebarBatchExportModals } from './sidebar/SidebarBatchExportModals';
 import { SidebarEntityModals } from './sidebar/SidebarEntityModals';
+import { renderSidebarV2TreeTitle } from './sidebar/SidebarTreeTitle';
 import {
   normalizeDriverType,
   useSidebarTreeLoaders,
@@ -108,9 +109,7 @@ import { Tree, message, Dropdown, MenuProps, Input, Button, Form, Badge, Checkbo
   MoreOutlined,
   ToolOutlined,
   SettingOutlined,
-  BarsOutlined,
-  StarFilled,
-  StarOutlined
+  BarsOutlined
 	} from '@ant-design/icons';
 import {
     buildSidebarRootConnectionToken,
@@ -4151,129 +4150,17 @@ const Sidebar: React.FC<{
       void fetchV2TableContextMenuStats(node);
   };
 
-  const renderV2TreeTitle = (node: any, hoverTitle: string, statusBadge: React.ReactNode) => {
-      const rawTitle = String(node.title ?? '');
-      const groupKey = String(node?.dataRef?.groupKey || '');
-      const dragText = resolveSidebarObjectDragText(node);
-      if (node.type === 'v2-table-section') {
-          return (
-              <span
-                  className="gn-v2-tree-section-title"
-                  data-section-kind={node?.dataRef?.sectionKind || undefined}
-                  title={rawTitle}
-              >
-                  {rawTitle}
-              </span>
-          );
-      }
-      const displayTitle = (() => {
-           if (node.type === 'queries-folder') return t('sidebar.tree.saved_queries');
-           if (node.type === 'external-sql-root') return t('sidebar.external_sql.root');
-           if (node.type === 'object-group') {
-              const objectGroupTitle = resolveV2ObjectGroupTitle(node);
-              if (objectGroupTitle) return objectGroupTitle;
-           }
-           return rawTitle;
-       })();
-      const metaText = getV2TreeMetaText(node);
-      const isMono = node.type === 'table'
-          || node.type === 'view'
-          || node.type === 'materialized-view'
-          || node.type === 'db-trigger'
-          || node.type === 'db-event'
-          || node.type === 'routine'
-          || node.type === 'saved-query'
-          || node.type === 'external-sql-file';
-      const titleClassName = [
-          'gn-v2-tree-title',
-          isMono ? 'is-mono' : '',
-          node.type === 'object-group' ? 'is-group' : '',
-          node.type === 'table' && node?.dataRef?.pinnedSidebarTable ? 'is-pinned-table' : '',
-      ].filter(Boolean).join(' ');
-      const tablePinAction = node.type === 'table' ? (
-          <button
-              type="button"
-              className={[
-                  'gn-v2-table-pin-action',
-                  node?.dataRef?.pinnedSidebarTable ? 'is-pinned' : '',
-              ].filter(Boolean).join(' ')}
-              title={node?.dataRef?.pinnedSidebarTable ? t('sidebar.action.unpin_table') : t('sidebar.action.pin_table')}
-              aria-label={node?.dataRef?.pinnedSidebarTable ? t('sidebar.action.unpin_table') : t('sidebar.action.pin_table')}
-              aria-pressed={node?.dataRef?.pinnedSidebarTable ? true : false}
-              data-v2-sidebar-table-pin-action="true"
-              onMouseDown={(event) => {
-                  event.preventDefault();
-                  event.stopPropagation();
-              }}
-              onClick={(event) => {
-                  event.preventDefault();
-                  event.stopPropagation();
-                  toggleSidebarTablePinned(node);
-              }}
-              onDoubleClick={(event) => {
-                  event.preventDefault();
-                  event.stopPropagation();
-              }}
-          >
-              {node?.dataRef?.pinnedSidebarTable ? <StarFilled /> : <StarOutlined />}
-          </button>
-      ) : null;
-      if (node.type === 'connection') {
-          return (
-            <span
-                className={`${titleClassName} is-connection`}
-                title={hoverTitle}
-                data-node-type={node.type}
-                data-sidebar-node-key={String(node.key || '')}
-                data-sidebar-node-type={String(node.type || '')}
-            >
-                {statusBadge}
-                <span className="gn-v2-tree-connection-copy">
-                    <span className="gn-v2-tree-label">{displayTitle}</span>
-                </span>
-            </span>
-          );
-      }
-      return (
-        <>
-          <span
-              className={titleClassName}
-              title={hoverTitle}
-              draggable={!!dragText}
-              data-node-type={node.type}
-              data-group-key={groupKey || undefined}
-              data-sidebar-node-key={String(node.key || '')}
-              data-sidebar-node-type={String(node.type || '')}
-              onDragStart={dragText ? (event) => {
-                  snapshotTreeSelectionBeforeDrag();
-                  treeDragSelectSuppressUntilRef.current = Date.now() + 600;
-                  setIsTreeDragging(true);
-                  event.stopPropagation();
-                  event.dataTransfer.effectAllowed = 'copy';
-                  event.dataTransfer.setData('text/plain', dragText);
-                  event.dataTransfer.setData(
-                      SIDEBAR_SQL_EDITOR_DRAG_MIME,
-                      encodeSidebarSqlEditorDragPayload({
-                          text: dragText,
-                          nodeType: node.type,
-                          connectionId: String(node?.dataRef?.id || ''),
-                          dbName: String(node?.dataRef?.dbName || ''),
-                      }),
-                  );
-              } : undefined}
-              onDragEnd={dragText ? () => {
-                  restoreTreeSelectionAfterDrag();
-                  setIsTreeDragging(false);
-              } : undefined}
-          >
-              {statusBadge}
-              <span className="gn-v2-tree-label">{displayTitle}</span>
-              {metaText && <span className="gn-v2-tree-count">{metaText}</span>}
-          </span>
-          {tablePinAction}
-        </>
-      );
-  };
+  const renderV2TreeTitle = (node: any, hoverTitle: string, statusBadge: React.ReactNode) => renderSidebarV2TreeTitle({
+      node,
+      hoverTitle,
+      statusBadge,
+      getV2TreeMetaText,
+      toggleSidebarTablePinned,
+      snapshotTreeSelectionBeforeDrag,
+      restoreTreeSelectionAfterDrag,
+      treeDragSelectSuppressUntilRef,
+      setIsTreeDragging,
+  });
 
   const selectConnectionFromRail = useCallback((conn: SavedConnection) => {
       const key = conn.id;
diff --git a/frontend/src/components/sidebar/SidebarTreeTitle.tsx b/frontend/src/components/sidebar/SidebarTreeTitle.tsx
new file mode 100644
index 00000000..3db6508c
--- /dev/null
+++ b/frontend/src/components/sidebar/SidebarTreeTitle.tsx
@@ -0,0 +1,152 @@
+import React from 'react';
+import { StarFilled, StarOutlined } from '@ant-design/icons';
+import { t } from '../../i18n';
+import { SIDEBAR_SQL_EDITOR_DRAG_MIME, encodeSidebarSqlEditorDragPayload } from '../../utils/sidebarSqlDrag';
+import { resolveSidebarObjectDragText } from '../sidebarCoreUtils';
+import { resolveV2ObjectGroupTitle } from './sidebarHelpers';
+
+type SidebarV2TreeTitleOptions = {
+  node: any;
+  hoverTitle: string;
+  statusBadge: React.ReactNode;
+  getV2TreeMetaText: (node: any) => string;
+  toggleSidebarTablePinned: (node: any) => void;
+  snapshotTreeSelectionBeforeDrag: () => void;
+  restoreTreeSelectionAfterDrag: () => void;
+  treeDragSelectSuppressUntilRef: React.MutableRefObject<number>;
+  setIsTreeDragging: (dragging: boolean) => void;
+};
+
+export const renderSidebarV2TreeTitle = ({
+  node,
+  hoverTitle,
+  statusBadge,
+  getV2TreeMetaText,
+  toggleSidebarTablePinned,
+  snapshotTreeSelectionBeforeDrag,
+  restoreTreeSelectionAfterDrag,
+  treeDragSelectSuppressUntilRef,
+  setIsTreeDragging,
+}: SidebarV2TreeTitleOptions): React.ReactNode => {
+  const rawTitle = String(node.title ?? '');
+  const groupKey = String(node?.dataRef?.groupKey || '');
+  const dragText = resolveSidebarObjectDragText(node);
+  if (node.type === 'v2-table-section') {
+    return (
+      <span
+        className="gn-v2-tree-section-title"
+        data-section-kind={node?.dataRef?.sectionKind || undefined}
+        title={rawTitle}
+      >
+        {rawTitle}
+      </span>
+    );
+  }
+  const displayTitle = (() => {
+    if (node.type === 'queries-folder') return t('sidebar.tree.saved_queries');
+    if (node.type === 'external-sql-root') return t('sidebar.external_sql.root');
+    if (node.type === 'object-group') {
+      const objectGroupTitle = resolveV2ObjectGroupTitle(node);
+      if (objectGroupTitle) return objectGroupTitle;
+    }
+    return rawTitle;
+  })();
+  const metaText = getV2TreeMetaText(node);
+  const isMono = node.type === 'table'
+    || node.type === 'view'
+    || node.type === 'materialized-view'
+    || node.type === 'db-trigger'
+    || node.type === 'db-event'
+    || node.type === 'routine'
+    || node.type === 'saved-query'
+    || node.type === 'external-sql-file';
+  const titleClassName = [
+    'gn-v2-tree-title',
+    isMono ? 'is-mono' : '',
+    node.type === 'object-group' ? 'is-group' : '',
+    node.type === 'table' && node?.dataRef?.pinnedSidebarTable ? 'is-pinned-table' : '',
+  ].filter(Boolean).join(' ');
+  const tablePinAction = node.type === 'table' ? (
+    <button
+      type="button"
+      className={[
+        'gn-v2-table-pin-action',
+        node?.dataRef?.pinnedSidebarTable ? 'is-pinned' : '',
+      ].filter(Boolean).join(' ')}
+      title={node?.dataRef?.pinnedSidebarTable ? t('sidebar.action.unpin_table') : t('sidebar.action.pin_table')}
+      aria-label={node?.dataRef?.pinnedSidebarTable ? t('sidebar.action.unpin_table') : t('sidebar.action.pin_table')}
+      aria-pressed={node?.dataRef?.pinnedSidebarTable ? true : false}
+      data-v2-sidebar-table-pin-action="true"
+      onMouseDown={(event) => {
+        event.preventDefault();
+        event.stopPropagation();
+      }}
+      onClick={(event) => {
+        event.preventDefault();
+        event.stopPropagation();
+        toggleSidebarTablePinned(node);
+      }}
+      onDoubleClick={(event) => {
+        event.preventDefault();
+        event.stopPropagation();
+      }}
+    >
+      {node?.dataRef?.pinnedSidebarTable ? <StarFilled /> : <StarOutlined />}
+    </button>
+  ) : null;
+  if (node.type === 'connection') {
+    return (
+      <span
+        className={`${titleClassName} is-connection`}
+        title={hoverTitle}
+        data-node-type={node.type}
+        data-sidebar-node-key={String(node.key || '')}
+        data-sidebar-node-type={String(node.type || '')}
+      >
+        {statusBadge}
+        <span className="gn-v2-tree-connection-copy">
+          <span className="gn-v2-tree-label">{displayTitle}</span>
+        </span>
+      </span>
+    );
+  }
+  return (
+    <>
+      <span
+        className={titleClassName}
+        title={hoverTitle}
+        draggable={!!dragText}
+        data-node-type={node.type}
+        data-group-key={groupKey || undefined}
+        data-sidebar-node-key={String(node.key || '')}
+        data-sidebar-node-type={String(node.type || '')}
+        onDragStart={dragText ? (event) => {
+          snapshotTreeSelectionBeforeDrag();
+          treeDragSelectSuppressUntilRef.current = Date.now() + 600;
+          setIsTreeDragging(true);
+          event.stopPropagation();
+          event.dataTransfer.effectAllowed = 'copy';
+          event.dataTransfer.setData('text/plain', dragText);
+          event.dataTransfer.setData(
+            SIDEBAR_SQL_EDITOR_DRAG_MIME,
+            encodeSidebarSqlEditorDragPayload({
+              text: dragText,
+              nodeType: node.type,
+              connectionId: String(node?.dataRef?.id || ''),
+              dbName: String(node?.dataRef?.dbName || ''),
+            }),
+          );
+        } : undefined}
+        onDragEnd={dragText ? () => {
+          restoreTreeSelectionAfterDrag();
+          setIsTreeDragging(false);
+        } : undefined}
+      >
+        {statusBadge}
+        <span className="gn-v2-tree-label">{displayTitle}</span>
+        {metaText && <span className="gn-v2-tree-count">{metaText}</span>}
+      </span>
+      {tablePinAction}
+    </>
+  );
+};