diff --git a/src-python/config.py b/src-python/config.py
index 81d27b54..44f3fa4e 100644
--- a/src-python/config.py
+++ b/src-python/config.py
@@ -1000,8 +1000,8 @@ class Config:
 
         self._MAX_MIC_THRESHOLD = 2000
         self._MAX_SPEAKER_THRESHOLD = 4000
-        self._WATCHDOG_TIMEOUT = 30
-        self._WATCHDOG_INTERVAL = 1
+        self._WATCHDOG_TIMEOUT = 60
+        self._WATCHDOG_INTERVAL = 20
 
         # Read Write
         self._ENABLE_TRANSLATION = False
diff --git a/src-python/model.py b/src-python/model.py
index 4773d9d5..8c465e7e 100644
--- a/src-python/model.py
+++ b/src-python/model.py
@@ -783,12 +783,20 @@ class Model:
         self.overlay.shutdownOverlay()
 
     def startWatchdog(self):
-        self.watchdog.start()
+        self.th_watchdog = threadFnc(self.watchdog.start)
+        self.th_watchdog.daemon = True
+        self.th_watchdog.start()
 
     def feedWatchdog(self):
         self.watchdog.feed()
 
+    def setWatchdogCallback(self, callback):
+        self.watchdog.setCallback(callback)
+
     def stopWatchdog(self):
-        self.watchdog.stop()
+        if isinstance(self.th_watchdog, threadFnc):
+            self.th_watchdog.stop()
+            self.th_watchdog.join()
+            self.th_watchdog = None
 
 model = Model()
\ No newline at end of file
diff --git a/src-python/models/watchdog/watchdog.py b/src-python/models/watchdog/watchdog.py
index 10b5b9e1..089e8680 100644
--- a/src-python/models/watchdog/watchdog.py
+++ b/src-python/models/watchdog/watchdog.py
@@ -1,30 +1,22 @@
-import os
+from typing import Callable
 import time
-from threading import Thread, Event
 from utils import printLog
 
 class Watchdog:
-    def __init__(self, timeout:int=60, interval:int=1):
+    def __init__(self, timeout:int=60, interval:int=20):
         self.timeout = timeout
         self.interval = interval
         self.last_feed_time = time.time()
-        self._stop_event = Event()
-        self._watchdog_thread = Thread(target=self._watchdog_loop)
-
-    def start(self):
-        self._watchdog_thread.start()
-
-    def stop(self):
-        self._stop_event.set()
-        self._watchdog_thread.join()
 
     def feed(self):
         self.last_feed_time = time.time()
 
-    def _watchdog_loop(self):
-        while not self._stop_event.is_set():
-            if time.time() - self.last_feed_time > self.timeout:
-                printLog("Watchdog timeout! Shutting down...")
-                os._exit(1)
+    def setCallback(self, callback):
+        self.callback = callback
 
-            time.sleep(self.interval)
\ No newline at end of file
+    def start(self):
+        if time.time() - self.last_feed_time > self.timeout:
+            printLog("Watchdog timeout! Shutting down...")
+            if isinstance(self.callback, Callable):
+                self.callback()
+        time.sleep(self.interval)
\ No newline at end of file
diff --git a/src-python/webui_controller.py b/src-python/webui_controller.py
index 23aa9a89..82edcd0a 100644
--- a/src-python/webui_controller.py
+++ b/src-python/webui_controller.py
@@ -1537,6 +1537,10 @@ class Controller:
         model.feedWatchdog()
         return {"status":200, "result":True}
 
+    @staticmethod
+    def setWatchdogCallback(callback) -> dict:
+        model.setWatchdogCallback(callback)
+
     @staticmethod
     def stopWatchdog(*args, **kwargs) -> dict:
         model.stopWatchdog()
diff --git a/src-python/webui_mainloop.py b/src-python/webui_mainloop.py
index 800f4058..2e6b8197 100644
--- a/src-python/webui_mainloop.py
+++ b/src-python/webui_mainloop.py
@@ -319,6 +319,7 @@ mapping = {
 class Main:
     def __init__(self) -> None:
         self.queue = Queue()
+        self.main_loop = True
 
     def receiver(self) -> None:
         while True:
@@ -380,15 +381,19 @@ class Main:
         th_handler.daemon = True
         th_handler.start()
 
-    def loop(self) -> None:
-        while True:
+    def start(self) -> None:
+        while self.main_loop:
             time.sleep(1)
 
+    def stop(self) -> None:
+        self.main_loop = False
+
 if __name__ == "__main__":
     main = Main()
     main.startReceiver()
     main.startHandler()
 
+    controller.setWatchdogCallback(main.stop)
     controller.init()
 
     # mappingのすべてのstatusをTrueにする
@@ -398,7 +403,7 @@ if __name__ == "__main__":
     process = "main"
     match process:
         case "main":
-            main.loop()
+            main.start()
 
         case "test":
             for _ in range(100):
diff --git a/src-ui/app/App.jsx b/src-ui/app/App.jsx
index 08eccea8..5d04fc92 100644
--- a/src-ui/app/App.jsx
+++ b/src-ui/app/App.jsx
@@ -142,5 +142,5 @@ const startFeedingToWatchDog = () => {
     const { asyncStdoutToPython } = useStdoutToPython();
     setInterval(() => {
         asyncStdoutToPython("/run/feed_watchdog");
-    }, 10000); // 10000ミリ秒 = 10秒
+    }, 20000); // 20000ミリ秒 = 20秒
 };
\ No newline at end of file