diff --git a/lib/screens/home_screen.dart b/lib/screens/home_screen.dart
index fdce83d..47b1bd9 100644
--- a/lib/screens/home_screen.dart
+++ b/lib/screens/home_screen.dart
@@ -2,6 +2,7 @@
 import 'package:provider/provider.dart';
 import 'package:screen_brightness/screen_brightness.dart';
 
+import 'package:mini_tias/providers/camera_provider.dart';
 import 'package:mini_tias/providers/gallery_provider.dart';
 import 'package:mini_tias/screens/capture_screen.dart';
 import 'package:mini_tias/screens/gallery_screen.dart';
@@ -41,6 +42,7 @@
   Widget build(BuildContext context) {
     final screenHeight = MediaQuery.of(context).size.height;
     final attachmentPadding = screenHeight / 3;
+    final cameraProvider = context.watch<CameraProvider>();
 
     return Scaffold(
       backgroundColor: Colors.black,
@@ -49,12 +51,14 @@
           // ナビゲーションバー
           BottomNavigationBar(
             currentIndex: _currentIndex,
-            onTap: (index) {
-              setState(() => _currentIndex = index);
-              if (index == 1) {
-                context.read<GalleryProvider>().loadImages();
-              }
-            },
+            onTap: cameraProvider.isSaving
+                ? null
+                : (index) {
+                    setState(() => _currentIndex = index);
+                    if (index == 1) {
+                      context.read<GalleryProvider>().loadImages();
+                    }
+                  },
             backgroundColor: Colors.black87,
             selectedItemColor: Colors.white,
             unselectedItemColor: Colors.white60,