diff --git a/lib/RegisterPage.dart b/lib/RegisterPage.dart
index 6919bc8..3459bba 100644
--- a/lib/RegisterPage.dart
+++ b/lib/RegisterPage.dart
@@ -18,6 +18,7 @@ class RegisterPage extends StatefulWidget {
 }
 
 class _RegisterPageState extends State<RegisterPage> {
+  late FocusNode _nameFocusNode, _emailFocusNode, _passwordFocusNode, _codeFocusNode;
   final TextEditingController _nameController = TextEditingController();
   final TextEditingController _emailController = TextEditingController();
   final TextEditingController _passwordController = TextEditingController();
@@ -33,6 +34,10 @@ class _RegisterPageState extends State<RegisterPage> {
   void initState() {
     super.initState();
     _fetchData();
+    _nameFocusNode = FocusNode();
+    _emailFocusNode = FocusNode();
+    _passwordFocusNode = FocusNode();
+    _codeFocusNode = FocusNode();
   }
 
   void _fetchData() async {
@@ -124,7 +129,6 @@ class _RegisterPageState extends State<RegisterPage> {
       databaseName: 'care',
     );
     await conn.connect();
-
     try {
       String name = _nameController.text;
       String email = _emailController.text;
@@ -172,8 +176,13 @@ class _RegisterPageState extends State<RegisterPage> {
 
   @override
   void dispose() {
-    _timer?.cancel();
     super.dispose();
+    _timer?.cancel();
+
+    _nameFocusNode.dispose();
+    _emailFocusNode.dispose();
+    _passwordFocusNode.dispose();
+    _codeFocusNode.dispose();
   }
 
   @override
@@ -207,6 +216,7 @@ class _RegisterPageState extends State<RegisterPage> {
                   SizedBox(height: 20),
                   TextField(
                     controller: _nameController,
+                    focusNode: _nameFocusNode,
                     decoration: InputDecoration(
                       border: OutlineInputBorder(),
                       prefixIcon: Icon(Icons.person_outlined),
@@ -216,6 +226,7 @@ class _RegisterPageState extends State<RegisterPage> {
                   SizedBox(height: 20),
                   TextField(
                     controller: _emailController,
+                    focusNode: _emailFocusNode,
                     decoration: InputDecoration(
                       border: OutlineInputBorder(),
                       prefixIcon: Icon(Icons.email_outlined),
@@ -226,6 +237,7 @@ class _RegisterPageState extends State<RegisterPage> {
                   SizedBox(height: 20),
                   TextField(
                     controller: _passwordController,
+                    focusNode: _passwordFocusNode,
                     decoration: InputDecoration(
                       border: OutlineInputBorder(),
                       prefixIcon: Icon(Icons.lock_outlined),
@@ -251,6 +263,7 @@ class _RegisterPageState extends State<RegisterPage> {
                       Expanded(
                         child: TextField(
                           controller: _codeController,
+                          focusNode: _codeFocusNode,
                           decoration: InputDecoration(
                             labelText: '驗證碼',
                             hintText: '填寫驗證碼',