diff --git a/src-python/models/websocket/__init__.py b/src-python/models/websocket/__init__.py
new file mode 100644
index 00000000..a01d3ba6
--- /dev/null
+++ b/src-python/models/websocket/__init__.py
@@ -0,0 +1,4 @@
+# WebSocketサーバーモジュール
+from .websocket_server import WebSocketServer
+
+__all__ = ["WebSocketServer"]
diff --git a/src-python/models/websocket/model_part.py b/src-python/models/websocket/model_part.py
new file mode 100644
index 00000000..47758bf0
--- /dev/null
+++ b/src-python/models/websocket/model_part.py
@@ -0,0 +1,103 @@
+import copy
+import gc
+from subprocess import Popen
+from os import makedirs as os_makedirs
+from os import path as os_path
+from datetime import datetime
+from time import sleep
+from queue import Queue
+from threading import Thread
+from requests import get as requests_get
+from typing import Callable
+from packaging.version import parse
+
+from flashtext import KeywordProcessor
+from pykakasi import kakasi
+
+from device_manager import device_manager
+from config import config
+
+from models.translation.translation_translator import Translator
+from models.osc.osc import OSCHandler
+from models.transcription.transcription_recorder import SelectedMicEnergyAndAudioRecorder, SelectedSpeakerEnergyAndAudioRecorder
+from models.transcription.transcription_recorder import SelectedMicEnergyRecorder, SelectedSpeakerEnergyRecorder
+from models.transcription.transcription_transcriber import AudioTranscriber
+from models.translation.translation_languages import translation_lang
+from models.transcription.transcription_languages import transcription_lang
+from models.translation.translation_utils import checkCTranslate2Weight, downloadCTranslate2Weight, downloadCTranslate2Tokenizer
+from models.transcription.transcription_whisper import checkWhisperWeight, downloadWhisperWeight
+from models.overlay.overlay import Overlay
+from models.overlay.overlay_image import OverlayImage
+from models.watchdog.watchdog import Watchdog
+from models.websocket.websocket_server import WebSocketServer
+from utils import errorLogging, setupLogger
+
+class threadFnc(Thread):
+    def __init__(self, fnc, end_fnc=None, daemon=True, *args, **kwargs):
+        super(threadFnc, self).__init__(daemon=daemon, target=fnc, *args, **kwargs)
+        self.fnc = fnc
+        self.end_fnc = end_fnc
+        self.loop = True
+        self._pause = False
+
+    def stop(self):
+        self.loop = False
+
+    def pause(self):
+        self._pause = True
+
+    def resume(self):
+        self._pause = False
+
+    def run(self):
+        while self.loop:
+            self.fnc(*self._args, **self._kwargs)
+            while self._pause:
+                sleep(0.1)
+
+        if callable(self.end_fnc):
+            self.end_fnc()
+        return
+
+class Model:
+    _instance = None
+
+    def __new__(cls):
+        if cls._instance is None:
+            cls._instance = super(Model, cls).__new__(cls)
+            cls._instance.init()
+        return cls._instance
+
+    def init(self):
+        self.logger = None
+        self.th_check_device = None
+        self.mic_print_transcript = None
+        self.mic_audio_recorder = None
+        self.mic_transcriber = None
+        self.mic_energy_recorder = None
+        self.mic_energy_plot_progressbar = None
+        self.speaker_print_transcript = None
+        self.speaker_audio_recorder = None
+        self.speaker_transcriber = None
+        self.speaker_energy_recorder = None
+        self.speaker_energy_plot_progressbar = None
+
+        self.previous_send_message = ""
+        self.previous_receive_message = ""
+        self.translator = Translator()
+        self.keyword_processor = KeywordProcessor()
+        overlay_small_log_settings = copy.deepcopy(config.OVERLAY_SMALL_LOG_SETTINGS)
+        overlay_large_log_settings = copy.deepcopy(config.OVERLAY_LARGE_LOG_SETTINGS)
+        overlay_large_log_settings["ui_scaling"] = overlay_large_log_settings["ui_scaling"] * 0.25
+        overlay_settings = {
+            "small": overlay_small_log_settings,
+            "large": overlay_large_log_settings,
+        }
+        self.overlay = Overlay(overlay_settings)
+        self.overlay_image = OverlayImage()
+        self.mic_audio_queue = None
+        self.mic_mute_status = None
+        self.kks = kakasi()
+        self.watchdog = Watchdog(config.WATCHDOG_TIMEOUT, config.WATCHDOG_INTERVAL)
+        self.osc_handler = OSCHandler(config.OSC_IP_ADDRESS, config.OSC_PORT)
+        self.websocket_server = WebSocketServer(host="0.0.0.0", port=8765)
diff --git a/src-python/models/websocket/websocket_server.py b/src-python/models/websocket/websocket_server.py
new file mode 100644
index 00000000..73ee3787
--- /dev/null
+++ b/src-python/models/websocket/websocket_server.py
@@ -0,0 +1,102 @@
+import asyncio
+import json
+import logging
+from typing import Dict, Set, Optional
+import websockets
+from websockets.server import WebSocketServerProtocol
+
+class WebSocketServer:
+    def __init__(self, host: str = "0.0.0.0", port: int = 8765):
+        self.host = host
+        self.port = port
+        self.clients: Set[WebSocketServerProtocol] = set()
+        self.server = None
+        self.is_running = False
+        self.logger = logging.getLogger('websocket_server')
+
+    async def register(self, websocket: WebSocketServerProtocol):
+        """クライアント接続を登録する"""
+        self.clients.add(websocket)
+        self.logger.info(f"クライアント接続: {websocket.remote_address}, 現在の接続数: {len(self.clients)}")
+
+    async def unregister(self, websocket: WebSocketServerProtocol):
+        """クライアント接続を解除する"""
+        self.clients.remove(websocket)
+        self.logger.info(f"クライアント切断: {websocket.remote_address}, 現在の接続数: {len(self.clients)}")
+
+    async def handler(self, websocket: WebSocketServerProtocol, path: str):
+        """WebSocket接続ハンドラー"""
+        await self.register(websocket)
+        try:
+            async for message in websocket:
+                # クライアントからのメッセージを処理（必要に応じて）
+                # 現在はクライアントからのメッセージは特に処理していません
+                self.logger.debug(f"クライアントからのメッセージ: {message}")
+        except websockets.exceptions.ConnectionClosed:
+            pass
+        finally:
+            await self.unregister(websocket)
+
+    async def broadcast(self, message: Dict):
+        """全クライアントにメッセージをブロードキャストする"""
+        if not self.clients:
+            return
+
+        json_message = json.dumps(message)
+        tasks = [client.send(json_message) for client in self.clients]
+        await asyncio.gather(*tasks, return_exceptions=True)
+
+    def send_transcription(self, transcription_data: Dict):
+        """文字起こし結果を送信する関数（通常のコードから呼び出し可能）"""
+        if not self.is_running or not self.clients:
+            return
+
+        # asyncioのイベントループがあれば利用し、なければ新たに作成
+        loop = asyncio.get_event_loop() if asyncio.get_event_loop().is_running() else asyncio.new_event_loop()
+        
+        # ブロードキャスト関数を実行
+        asyncio.run_coroutine_threadsafe(
+            self.broadcast(transcription_data),
+            loop
+        )
+
+    async def start_server(self):
+        """WebSocketサーバーを起動する"""
+        if not self.is_running:
+            self.server = await websockets.serve(self.handler, self.host, self.port)
+            self.is_running = True
+            self.logger.info(f"WebSocketサーバーを起動しました - {self.host}:{self.port}")
+            return True
+        return False
+
+    def start(self):
+        """非同期ループでWebSocketサーバーを起動する（通常のコードから呼び出し可能）"""
+        loop = asyncio.new_event_loop()
+        asyncio.set_event_loop(loop)
+        loop.run_until_complete(self.start_server())
+        # バックグラウンドでループを実行
+        self._task = asyncio.run_coroutine_threadsafe(self._run_forever(), loop)
+
+    async def _run_forever(self):
+        """サーバーを永続的に実行する"""
+        while self.is_running:
+            await asyncio.sleep(0.1)
+
+    async def stop_server(self):
+        """WebSocketサーバーを停止する"""
+        if self.is_running and self.server:
+            self.server.close()
+            await self.server.wait_closed()
+            self.is_running = False
+            self.clients.clear()
+            self.logger.info("WebSocketサーバーを停止しました")
+            return True
+        return False
+
+    def stop(self):
+        """WebSocketサーバーを停止する（通常のコードから呼び出し可能）"""
+        if not self.is_running:
+            return
+
+        loop = asyncio.get_event_loop()
+        asyncio.run_coroutine_threadsafe(self.stop_server(), loop)