diff --git a/frontend/src/components/ConnectionModal.tsx b/frontend/src/components/ConnectionModal.tsx
index 8ee5a32..ff1b4b6 100644
--- a/frontend/src/components/ConnectionModal.tsx
+++ b/frontend/src/components/ConnectionModal.tsx
@@ -12,6 +12,7 @@ import {
 } from '../utils/connectionModalPresentation';
 import { resolveConnectionSecretDraft } from '../utils/connectionSecretDraft';
 import { getCustomConnectionDsnValidationMessage } from '../utils/customConnectionDsn';
+import { CUSTOM_CONNECTION_DRIVER_HELP } from '../utils/driverImportGuidance';
 import { applyNoAutoCapAttributes, noAutoCapInputProps } from '../utils/inputAutoCap';
 import { DBGetDatabases, GetDriverStatusList, MongoDiscoverMembers, TestConnection, RedisConnect, SelectDatabaseFile, SelectSSHKeyFile } from '../../wailsjs/go/app/App';
 import { ConnectionConfig, MongoMemberInfo, SavedConnection } from '../types';
@@ -2163,7 +2164,7 @@ const ConnectionModal: React.FC<{
 
               {isCustom ? (
                   <>
-                      <Form.Item name="driver" label="驱动名称 (Driver Name)" rules={[{ required: true, message: '请输入驱动名称' }]} help="已支持: mysql, postgres, sqlite, oracle, dm, kingbase">
+                      <Form.Item name="driver" label="驱动名称 (Driver Name)" rules={[{ required: true, message: '请输入驱动名称' }]} help={CUSTOM_CONNECTION_DRIVER_HELP}>
                           <Input {...noAutoCapInputProps} placeholder="例如: mysql, postgres" />
                       </Form.Item>
                       <Form.Item name="dsn" label="连接字符串 (DSN)" rules={[createCustomDsnRule()]}>
diff --git a/frontend/src/components/DriverManagerModal.tsx b/frontend/src/components/DriverManagerModal.tsx
index bb15d9c..9b8ea05 100644
--- a/frontend/src/components/DriverManagerModal.tsx
+++ b/frontend/src/components/DriverManagerModal.tsx
@@ -4,6 +4,11 @@ import { DeleteOutlined, DownloadOutlined, FileSearchOutlined, FolderOpenOutline
 import { EventsOn } from '../../wailsjs/runtime/runtime';
 import { useStore } from '../store';
 import { normalizeOpacityForPlatform, resolveAppearanceValues } from '../utils/appearance';
+import {
+  DRIVER_LOCAL_IMPORT_BUTTON_LABEL,
+  DRIVER_LOCAL_IMPORT_DIRECTORY_HELP,
+  DRIVER_LOCAL_IMPORT_SINGLE_FILE_HELP,
+} from '../utils/driverImportGuidance';
 import {
   CheckDriverNetworkStatus,
   DownloadDriverPackage,
@@ -1171,7 +1176,7 @@ const DriverManagerModal: React.FC<{ open: boolean; onClose: () => void; onOpenG
                 loading={loadingLocal}
                 onClick={() => installDriverFromLocalFile(row)}
               >
-                本地导入
+                {DRIVER_LOCAL_IMPORT_BUTTON_LABEL}
               </Button>
               <Button
                 type={hasLogs ? 'default' : 'text'}
@@ -1373,8 +1378,8 @@ const DriverManagerModal: React.FC<{ open: boolean; onClose: () => void; onOpenG
                   children: (
                     <Space direction="vertical" size={6} style={{ width: '100%' }}>
                       <Text type="secondary">自动下载和手动导入的驱动都会落盘到以下目录；后续版本升级可重复复用已下载驱动。</Text>
-                      <Text type="secondary">如果应用内下载链路失败，可先手动下载驱动包到该目录，再使用“本地导入”或“导入驱动目录”完成安装。</Text>
-                      <Text type="secondary">行内“本地导入”仅用于单个驱动文件/总包（如 `mariadb-driver-agent`、`mariadb-driver-agent.exe`、`GoNavi-DriverAgents.zip`）；批量导入请使用上方“导入驱动目录”。</Text>
+                      <Text type="secondary">{DRIVER_LOCAL_IMPORT_DIRECTORY_HELP}</Text>
+                      <Text type="secondary">{DRIVER_LOCAL_IMPORT_SINGLE_FILE_HELP}</Text>
                       <Paragraph copyable={{ text: downloadDir || '-' }} style={{ marginBottom: 0 }}>
                         驱动根目录：{downloadDir || '-'}
                       </Paragraph>
diff --git a/frontend/src/utils/driverImportGuidance.test.ts b/frontend/src/utils/driverImportGuidance.test.ts
new file mode 100644
index 0000000..3403509
--- /dev/null
+++ b/frontend/src/utils/driverImportGuidance.test.ts
@@ -0,0 +1,22 @@
+import { describe, expect, it } from 'vitest';
+
+import {
+  CUSTOM_CONNECTION_DRIVER_HELP,
+  DRIVER_LOCAL_IMPORT_BUTTON_LABEL,
+  DRIVER_LOCAL_IMPORT_DIRECTORY_HELP,
+  DRIVER_LOCAL_IMPORT_SINGLE_FILE_HELP,
+} from './driverImportGuidance';
+
+describe('driver import guidance', () => {
+  it('keeps local import copy focused on driver packages instead of JDBC jars', () => {
+    expect(DRIVER_LOCAL_IMPORT_BUTTON_LABEL).toBe('导入驱动包');
+    expect(DRIVER_LOCAL_IMPORT_DIRECTORY_HELP).toContain('导入驱动目录');
+    expect(DRIVER_LOCAL_IMPORT_SINGLE_FILE_HELP).toContain('JDBC Jar');
+  });
+
+  it('documents custom driver aliases for kingbase and related fallbacks', () => {
+    expect(CUSTOM_CONNECTION_DRIVER_HELP).toContain('kingbase8');
+    expect(CUSTOM_CONNECTION_DRIVER_HELP).toContain('pgx');
+    expect(CUSTOM_CONNECTION_DRIVER_HELP).toContain('JDBC Jar');
+  });
+});
diff --git a/frontend/src/utils/driverImportGuidance.ts b/frontend/src/utils/driverImportGuidance.ts
new file mode 100644
index 0000000..2980dfc
--- /dev/null
+++ b/frontend/src/utils/driverImportGuidance.ts
@@ -0,0 +1,10 @@
+export const DRIVER_LOCAL_IMPORT_BUTTON_LABEL = '导入驱动包';
+
+export const DRIVER_LOCAL_IMPORT_DIRECTORY_HELP =
+  '如果应用内下载链路失败，可先手动下载驱动包到该目录，再使用“导入驱动包”或“导入驱动目录”完成安装。';
+
+export const DRIVER_LOCAL_IMPORT_SINGLE_FILE_HELP =
+  '行内“导入驱动包”仅用于单个驱动文件/总包（如 `mariadb-driver-agent`、`mariadb-driver-agent.exe`、`GoNavi-DriverAgents.zip`），不支持直接导入 JDBC Jar；批量导入请使用上方“导入驱动目录”。';
+
+export const CUSTOM_CONNECTION_DRIVER_HELP =
+  '已支持: mysql, postgres, sqlite, oracle, dm, kingbase；别名支持 postgresql/pgx、dm8、kingbase8/kingbasees/kingbasev8。当前不支持通过 JDBC Jar 扩展驱动。';
diff --git a/internal/app/methods_driver.go b/internal/app/methods_driver.go
index 4802bf0..0c7ea02 100644
--- a/internal/app/methods_driver.go
+++ b/internal/app/methods_driver.go
@@ -486,6 +486,17 @@ func (a *App) SelectDriverDownloadDirectory(currentDir string) connection.QueryR
 	}
 }
 
+func validateLocalDriverPackagePath(path string) error {
+	pathText := strings.TrimSpace(path)
+	if pathText == "" {
+		return nil
+	}
+	if strings.EqualFold(filepath.Ext(pathText), ".jar") {
+		return fmt.Errorf("当前驱动管理不支持直接导入 JDBC Jar。GoNavi 使用 Go 驱动与可选 driver-agent；请改用驱动包/驱动目录，如需连接人大金仓请优先使用“Kingbase”连接类型，或在自定义连接中填写 kingbase / kingbase8")
+	}
+	return nil
+}
+
 func (a *App) SelectDriverPackageFile(currentPath string) connection.QueryResult {
 	defaultDir := strings.TrimSpace(currentPath)
 	if defaultDir == "" {
@@ -501,7 +512,7 @@ func (a *App) SelectDriverPackageFile(currentPath string) connection.QueryResult
 	}
 
 	selection, err := runtime.OpenFileDialog(a.ctx, runtime.OpenDialogOptions{
-		Title:            "选择驱动包文件",
+		Title:            "选择驱动包文件（非 JDBC Jar）",
 		DefaultDirectory: defaultDir,
 	})
 	if err != nil {
@@ -514,6 +525,9 @@ func (a *App) SelectDriverPackageFile(currentPath string) connection.QueryResult
 	if abs, err := filepath.Abs(selection); err == nil {
 		selection = abs
 	}
+	if err := validateLocalDriverPackagePath(selection); err != nil {
+		return connection.QueryResult{Success: false, Message: err.Error()}
+	}
 	return connection.QueryResult{Success: true, Data: map[string]interface{}{"path": selection}}
 }
 
@@ -900,6 +914,9 @@ func (a *App) InstallLocalDriverPackage(driverType string, filePath string, down
 	if definition.BuiltIn {
 		return connection.QueryResult{Success: false, Message: "内置驱动无需安装扩展包"}
 	}
+	if err := validateLocalDriverPackagePath(filePath); err != nil {
+		return connection.QueryResult{Success: false, Message: err.Error()}
+	}
 	if err := ensureOptionalDriverBuildAvailable(definition); err != nil {
 		return connection.QueryResult{Success: false, Message: err.Error()}
 	}
diff --git a/internal/app/methods_driver_local_import_test.go b/internal/app/methods_driver_local_import_test.go
new file mode 100644
index 0000000..bb4b45e
--- /dev/null
+++ b/internal/app/methods_driver_local_import_test.go
@@ -0,0 +1,37 @@
+package app
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+)
+
+func TestValidateLocalDriverPackagePathRejectsJdbcJar(t *testing.T) {
+	err := validateLocalDriverPackagePath(filepath.Join("tmp", "kingbase8.JAR"))
+	if err == nil {
+		t.Fatal("expected JDBC jar path to be rejected")
+	}
+	if !strings.Contains(err.Error(), "JDBC Jar") {
+		t.Fatalf("expected JDBC jar hint, got %q", err.Error())
+	}
+	if err := validateLocalDriverPackagePath(filepath.Join("tmp", "kingbase-driver-agent.zip")); err != nil {
+		t.Fatalf("expected zip package to stay supported, got %v", err)
+	}
+}
+
+func TestInstallLocalDriverPackageRejectsJdbcJarBeforeBuildChecks(t *testing.T) {
+	jarPath := filepath.Join(t.TempDir(), "kingbase8.jar")
+	if err := os.WriteFile(jarPath, []byte("fake-jar"), 0o644); err != nil {
+		t.Fatalf("write temp jar: %v", err)
+	}
+
+	app := &App{}
+	result := app.InstallLocalDriverPackage("kingbase", jarPath, t.TempDir(), "")
+	if result.Success {
+		t.Fatal("expected local jar import to fail")
+	}
+	if !strings.Contains(result.Message, "JDBC Jar") {
+		t.Fatalf("expected JDBC jar guidance, got %q", result.Message)
+	}
+}