diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/handler/V2rayConfigManager.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/handler/V2rayConfigManager.kt
index 2ff46395..b7c44012 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/handler/V2rayConfigManager.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/handler/V2rayConfigManager.kt
@@ -470,7 +470,7 @@ object V2rayConfigManager {
                 )
             }
 
-            if (MmkvManager.decodeSettingsBool(AppConfig.PREF_USE_HEV_TUNNEL) == false) {
+            if (MmkvManager.decodeSettingsBool(AppConfig.PREF_USE_HEV_TUNNEL ,true) == false) {
 
                 // DNS inbound
                 val remoteDns = SettingsManager.getRemoteDnsServers()
diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/service/V2RayVpnService.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/service/V2RayVpnService.kt
index ee71e79b..4afb6313 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/service/V2RayVpnService.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/service/V2RayVpnService.kt
@@ -295,7 +295,7 @@ class V2RayVpnService : VpnService(), ServiceControl {
      * Starts the tun2socks process with the appropriate parameters.
      */
     private fun runTun2socks() {
-        if (MmkvManager.decodeSettingsBool(AppConfig.PREF_USE_HEV_TUNNEL) == true) {
+        if (MmkvManager.decodeSettingsBool(AppConfig.PREF_USE_HEV_TUNNEL, true) == true) {
             tun2SocksService = TProxyService(
                 context = applicationContext,
                 vpnInterface = mInterface,
diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/ui/SettingsActivity.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/ui/SettingsActivity.kt
index 29c7735c..cf2f06c9 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/ui/SettingsActivity.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/ui/SettingsActivity.kt
@@ -227,7 +227,7 @@ class SettingsActivity : BaseActivity() {
             dnsHosts?.summary = MmkvManager.decodeSettingsString(AppConfig.PREF_DNS_HOSTS)
             delayTestUrl?.summary = MmkvManager.decodeSettingsString(AppConfig.PREF_DELAY_TEST_URL, AppConfig.DELAY_TEST_URL)
 
-            updateHevTunSettings(MmkvManager.decodeSettingsBool(AppConfig.PREF_USE_HEV_TUNNEL, false))
+            updateHevTunSettings(MmkvManager.decodeSettingsBool(AppConfig.PREF_USE_HEV_TUNNEL, true))
             hevTunRwTimeout?.summary = MmkvManager.decodeSettingsString(AppConfig.PREF_HEV_TUNNEL_RW_TIMEOUT, AppConfig.HEVTUN_RW_TIMEOUT)
 
             initSharedPreference()
@@ -254,6 +254,7 @@ class SettingsActivity : BaseActivity() {
 
             listOf(
                 AppConfig.PREF_SNIFFING_ENABLED,
+                AppConfig.PREF_USE_HEV_TUNNEL
             ).forEach { key ->
                 findPreference<CheckBoxPreference>(key)?.isChecked =
                     MmkvManager.decodeSettingsBool(key, true)
@@ -269,8 +270,7 @@ class SettingsActivity : BaseActivity() {
                 AppConfig.PREF_DOUBLE_COLUMN_DISPLAY,
                 AppConfig.PREF_PREFER_IPV6,
                 AppConfig.PREF_PROXY_SHARING,
-                AppConfig.PREF_ALLOW_INSECURE,
-                AppConfig.PREF_USE_HEV_TUNNEL
+                AppConfig.PREF_ALLOW_INSECURE
             ).forEach { key ->
                 findPreference<CheckBoxPreference>(key)?.isChecked =
                     MmkvManager.decodeSettingsBool(key, false)
diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/viewmodel/SettingsViewModel.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/viewmodel/SettingsViewModel.kt
index 202c33e7..5e211e96 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/viewmodel/SettingsViewModel.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/viewmodel/SettingsViewModel.kt
@@ -82,13 +82,13 @@ class SettingsViewModel(application: Application) : AndroidViewModel(application
             AppConfig.PREF_DOUBLE_COLUMN_DISPLAY,
             AppConfig.SUBSCRIPTION_AUTO_UPDATE,
             AppConfig.PREF_FRAGMENT_ENABLED,
-            AppConfig.PREF_MUX_ENABLED,
-            AppConfig.PREF_USE_HEV_TUNNEL
+            AppConfig.PREF_MUX_ENABLED
                 -> {
                 MmkvManager.encodeSettings(key, sharedPreferences.getBoolean(key, false))
             }
 
-            AppConfig.PREF_SNIFFING_ENABLED -> {
+            AppConfig.PREF_SNIFFING_ENABLED,
+            AppConfig.PREF_USE_HEV_TUNNEL -> {
                 MmkvManager.encodeSettings(key, sharedPreferences.getBoolean(key, true))
             }
 
diff --git a/V2rayNG/app/src/main/res/xml/pref_settings.xml b/V2rayNG/app/src/main/res/xml/pref_settings.xml
index 6264014a..1715fb7c 100644
--- a/V2rayNG/app/src/main/res/xml/pref_settings.xml
+++ b/V2rayNG/app/src/main/res/xml/pref_settings.xml
@@ -79,6 +79,7 @@
             android:title="@string/title_pref_vpn_mtu" />
 
         <CheckBoxPreference
+            android:defaultValue="true"
             android:key="pref_use_hev_tunnel"
             android:summary="@string/summary_pref_use_hev_tunnel"
             android:title="@string/title_pref_use_hev_tunnel" />