diff --git a/main.py b/main.py
new file mode 100644
index 0000000..8055649
--- /dev/null
+++ b/main.py
@@ -0,0 +1,18 @@
+import asyncio
+from dotenv import load_dotenv
+from src.config import Config
+from src.bot import TradingBot
+from src.logger_setup import setup_logger
+
+load_dotenv()
+
+
+async def main():
+    setup_logger(log_level="INFO")
+    config = Config()
+    bot = TradingBot(config)
+    await bot.run()
+
+
+if __name__ == "__main__":
+    asyncio.run(main())
diff --git a/src/logger_setup.py b/src/logger_setup.py
new file mode 100644
index 0000000..b513c31
--- /dev/null
+++ b/src/logger_setup.py
@@ -0,0 +1,24 @@
+import sys
+from loguru import logger
+
+
+def setup_logger(log_level: str = "INFO"):
+    logger.remove()
+    logger.add(
+        sys.stdout,
+        format=(
+            "<green>{time:YYYY-MM-DD HH:mm:ss}</green> | "
+            "<level>{level: <8}</level> | "
+            "<cyan>{name}</cyan>:<cyan>{line}</cyan> - "
+            "<level>{message}</level>"
+        ),
+        level=log_level,
+        colorize=True,
+    )
+    logger.add(
+        "logs/bot_{time:YYYY-MM-DD}.log",
+        rotation="00:00",
+        retention="30 days",
+        level="DEBUG",
+        encoding="utf-8",
+    )
diff --git a/tests/test_exchange.py b/tests/test_exchange.py
index 7c8c9bc..c57a3e2 100644
--- a/tests/test_exchange.py
+++ b/tests/test_exchange.py
@@ -19,19 +19,20 @@ def config():
 
 @pytest.mark.asyncio
 async def test_set_leverage(config):
-    client = BinanceFuturesClient(config)
-    with patch.object(
-        client.client,
-        "futures_change_leverage",
-        return_value={"leverage": 10},
-    ):
+    with patch("src.exchange.Client") as MockClient:
+        mock_binance = MagicMock()
+        MockClient.return_value = mock_binance
+        mock_binance.futures_change_leverage.return_value = {"leverage": 10}
+        client = BinanceFuturesClient(config)
         result = await client.set_leverage(10)
         assert result is not None
 
 
 def test_calculate_quantity(config):
-    client = BinanceFuturesClient(config)
-    # 잔고 1000 USDT, 리스크 2%, 레버리지 10, 가격 0.5
-    qty = client.calculate_quantity(balance=1000.0, price=0.5, leverage=10)
-    # 1000 * 0.02 * 10 / 0.5 = 400
-    assert qty == pytest.approx(400.0, rel=0.01)
+    with patch("src.exchange.Client") as MockClient:
+        MockClient.return_value = MagicMock()
+        client = BinanceFuturesClient(config)
+        # 잔고 1000 USDT, 리스크 2%, 레버리지 10, 가격 0.5
+        qty = client.calculate_quantity(balance=1000.0, price=0.5, leverage=10)
+        # 1000 * 0.02 * 10 / 0.5 = 400
+        assert qty == pytest.approx(400.0, rel=0.01)