diff --git a/MenuPage.js b/MenuPage.js
index b67463a..ccd8773 100644
--- a/MenuPage.js
+++ b/MenuPage.js
@@ -21,6 +21,16 @@ export function MenuPage() {
   const { getCurrentTrain } = useCurrentTrain();
   const navigation = useNavigation();
   const { addListener } = navigation;
+  useEffect(() => {
+    AS.getItem("startPage")
+      .then((res) => {
+        if (res == "true") navigation.navigate("login");
+      })
+      .catch((e) => {
+        //6.0以降false
+        AS.setItem("startPage", "true");
+      });
+  }, []);
   useEffect(() => {
     const unsubscribe = addListener("tabPress", (e) => {
       AS.getItem("favoriteStation")
@@ -70,11 +80,7 @@ export function MenuPage() {
         options={{ ...optionData, gestureEnabled: false }}
         component={AllTrainDiagramView}
       />
-      <Stack.Screen
-        name="howto"
-        options={optionData}
-        component={HowTo}
-      />
+      <Stack.Screen name="howto" options={optionData} component={HowTo} />
     </Stack.Navigator>
   );
 }
diff --git a/assets/configuration/showSetting0.jpg b/assets/configuration/showSetting0.jpg
new file mode 100644
index 0000000..57bb439
Binary files /dev/null and b/assets/configuration/showSetting0.jpg differ
diff --git a/assets/configuration/showSetting1.jpg b/assets/configuration/showSetting1.jpg
new file mode 100644
index 0000000..dd9dbf6
Binary files /dev/null and b/assets/configuration/showSetting1.jpg differ
diff --git a/components/ActionSheetComponents/EachTrainInfoCore.js b/components/ActionSheetComponents/EachTrainInfoCore.js
index acdd83d..30487a2 100644
--- a/components/ActionSheetComponents/EachTrainInfoCore.js
+++ b/components/ActionSheetComponents/EachTrainInfoCore.js
@@ -340,6 +340,7 @@ export const EachTrainInfoCore = ({
       .then((d) => {
         if (d) setTrainPositionSwitch(d);
       })
+      //6.0で変更
       .catch(() => AS.setItem("trainPositionSwitch", "false"));
   }, []);
 
diff --git a/components/Settings/SettingTopPage.js b/components/Settings/SettingTopPage.js
index 3716164..382de1b 100644
--- a/components/Settings/SettingTopPage.js
+++ b/components/Settings/SettingTopPage.js
@@ -11,10 +11,11 @@ import {
 import * as Updates from "expo-updates";
 import { useWindowDimensions } from "react-native";
 import { ListItem } from "native-base";
+import { SwitchArea } from "../atom/SwitchArea";
 
 const versionCode = "5.5.1";
 
-export const SettingTopPage = ({ navigate, testNFC, updateAndReload }) => {
+export const SettingTopPage = ({ navigate, testNFC,startPage,setStartPage, updateAndReload }) => {
   const { width } = useWindowDimensions();
   return (
     <View style={{ height: "100%", backgroundColor: "#0099CC" }}>
@@ -100,10 +101,19 @@ export const SettingTopPage = ({ navigate, testNFC, updateAndReload }) => {
         </View>
 
         <View style={{ flex: 1, borderTopWidth: 1, borderColor: "gray" }}>
-          <ListItem
+          <SwitchArea
+              str="起動時に表示する画面"
+              bool={startPage}
+              setBool={setStartPage}
+              falseImage={require("../../assets/configuration/showSetting0.jpg")}
+              trueImage={require("../../assets/configuration/showSetting1.jpg")}
+              falseText={"リンクメニュー"}
+              trueText={"列車位置情報"}
+            /><ListItem
             style={{ flexDirection: "row" }}
             onPress={() => navigate("FavoriteSettings")}
           >
+            
             <Text
               style={{
                 fontSize: 20,
diff --git a/components/Settings/settings.js b/components/Settings/settings.js
index 5d3be45..4f9004f 100644
--- a/components/Settings/settings.js
+++ b/components/Settings/settings.js
@@ -35,6 +35,7 @@ export default function Setting(props) {
   const [trainMenu, setTrainMenu] = useState(false);
   const [trainPosition, setTrainPosition] = useState(false);
   const [headerSize, setHeaderSize] = useState("default");
+  const [startPage, setStartPage] = useState(false);
   useLayoutEffect(() => {
     AS.getItem("iconSwitch").then(setIconSetting);
     AS.getItem("mapSwitch").then(setMapSwitch);
@@ -43,6 +44,7 @@ export default function Setting(props) {
     AS.getItem("trainSwitch").then(setTrainMenu);
     AS.getItem("trainPositionSwitch").then(setTrainPosition);
     AS.getItem("headerSize").then(setHeaderSize);
+    AS.getItem("startPage").then(setStartPage);
   }, []);
   const testNFC = async () => {
     const result = await ExpoFelicaReader.scan();
@@ -57,6 +59,7 @@ export default function Setting(props) {
       AS.setItem("trainSwitch", trainMenu.toString()),
       AS.setItem("trainPositionSwitch", trainPosition.toString()),
       AS.setItem("headerSize", headerSize),
+      AS.setItem("startPage", startPage.toString()),
     ]).then(() => Updates.reloadAsync());
   };
   return (
@@ -75,19 +78,9 @@ export default function Setting(props) {
           <SettingTopPage
             {...props}
             navigate={navigate}
-            iconSetting={iconSetting}
-            setIconSetting={setIconSetting}
-            mapSwitch={mapSwitch}
-            setMapSwitch={setMapSwitch}
-            stationMenu={stationMenu}
-            setStationMenu={setStationMenu}
-            usePDFView={usePDFView}
-            setUsePDFView={setUsePDFView}
-            trainMenu={trainMenu}
-            setTrainMenu={setTrainMenu}
-            trainPosition={trainPosition}
-            setTrainPosition={setTrainPosition}
             testNFC={testNFC}
+            startPage={startPage}
+            setStartPage={setStartPage}
             updateAndReload={updateAndReload}
           />
         )}
diff --git a/stateBox/useTrainMenu.js b/stateBox/useTrainMenu.js
index eabd0ec..4db725b 100644
--- a/stateBox/useTrainMenu.js
+++ b/stateBox/useTrainMenu.js
@@ -72,6 +72,7 @@ export const TrainMenuProvider = ({ children }) => {
     //列車アイコンスイッチ
     ASCore({ k: "iconSwitch", s: setIconSetting, d: "true", u: true });
     //地図スイッチ
+    //6.0.0以降true
     ASCore({ k: "mapSwitch", s: setMapSwitch, d: "false", u: true });
     //駅メニュースイッチ
     ASCore({ k: "stationSwitch", s: setStationMenu, d: "true", u: true });