diff --git a/docs/api/config.md b/docs/api/config.md
index 654ea628..4b67620b 100644
--- a/docs/api/config.md
+++ b/docs/api/config.md
@@ -106,6 +106,30 @@ NoneBot 主要配置。大小写不敏感。
 
 
 
+### `log_level`
+
+
+* **类型**: `Union[int, str]`
+
+
+* **默认值**: `None`
+
+
+* **说明**
+
+    配置 NoneBot 日志输出等级，可以为 `int` 类型等级或等级名称，参考 [loguru 日志等级](https://loguru.readthedocs.io/en/stable/api/logger.html#levels)。
+
+
+
+* **示例**
+
+
+```default
+LOG_LEVEL=25
+LOG_LEVEL=INFO
+```
+
+
 ### `api_root`
 
 
diff --git a/nonebot/__init__.py b/nonebot/__init__.py
index aaf5ca77..df19fdbc 100644
--- a/nonebot/__init__.py
+++ b/nonebot/__init__.py
@@ -179,15 +179,17 @@ def init(*, _env_file: Optional[str] = None, **kwargs):
     """
     global _driver
     if not _driver:
-        logger.info("NoneBot is initializing...")
+        logger.success("NoneBot is initializing...")
         env = Env()
-        logger.opt(
-            colors=True).info(f"Current <y><b>Env: {env.environment}</b></y>")
         config = Config(**kwargs,
                         _common_config=env.dict(),
                         _env_file=_env_file or f".env.{env.environment}")
 
-        default_filter.level = "DEBUG" if config.debug else "INFO"
+        default_filter.level = (
+            "DEBUG" if config.debug else
+            "INFO") if config.log_level is None else config.log_level
+        logger.opt(
+            colors=True).info(f"Current <y><b>Env: {env.environment}</b></y>")
         logger.opt(colors=True).debug(
             f"Loaded <y><b>Config</b></y>: {escape_tag(str(config.dict()))}")
 
@@ -223,7 +225,7 @@ def run(host: Optional[str] = None,
         nonebot.run(host="127.0.0.1", port=8080)
 
     """
-    logger.info("Running NoneBot...")
+    logger.success("Running NoneBot...")
     get_driver().run(host, port, *args, **kwargs)
 
 
diff --git a/nonebot/config.py b/nonebot/config.py
index 26e832c5..ae82a3b6 100644
--- a/nonebot/config.py
+++ b/nonebot/config.py
@@ -15,10 +15,9 @@ NoneBot 使用 `pydantic`_ 以及 `python-dotenv`_ 来读取配置。
 """
 import os
 from pathlib import Path
-
 from datetime import timedelta
 from ipaddress import IPv4Address
-from typing import Any, Set, Dict, Tuple, Mapping, Optional
+from typing import Any, Set, Dict, Union, Tuple, Mapping, Optional
 
 from pydantic import BaseSettings, IPvAnyAddress
 from pydantic.env_settings import SettingsError, InitSettingsSource, EnvSettingsSource
@@ -173,6 +172,25 @@ class Config(BaseConfig):
 
       是否以调试模式运行 NoneBot。
     """
+    log_level: Optional[Union[int, str]] = None
+    """
+    - **类型**: ``Union[int, str]``
+    - **默认值**: ``None``
+
+    :说明:
+
+      配置 NoneBot 日志输出等级，可以为 ``int`` 类型等级或等级名称，参考 `loguru 日志等级`_。
+
+    :示例:
+
+    .. code-block:: default
+
+        LOG_LEVEL=25
+        LOG_LEVEL=INFO
+
+    .. _loguru 日志等级:
+        https://loguru.readthedocs.io/en/stable/api/logger.html#levels
+    """
 
     # bot connection configs
     api_root: Dict[str, str] = {}
diff --git a/nonebot/log.py b/nonebot/log.py
index 3f6d1e1a..4409162b 100644
--- a/nonebot/log.py
+++ b/nonebot/log.py
@@ -12,6 +12,7 @@ NoneBot 使用 `loguru`_ 来记录日志信息。
 
 import sys
 import logging
+from typing import Union
 
 from loguru import logger as logger_
 
@@ -44,11 +45,12 @@ logger = logger_
 class Filter:
 
     def __init__(self) -> None:
-        self.level = "DEBUG"
+        self.level: Union[int, str] = "DEBUG"
 
     def __call__(self, record):
         record["name"] = record["name"].split(".")[0]
-        levelno = logger.level(self.level).no
+        levelno = logger.level(self.level).no if isinstance(self.level,
+                                                            str) else self.level
         return record["level"].no >= levelno
 
 
diff --git a/nonebot/message.py b/nonebot/message.py
index 5b683cd1..4a3dc22c 100644
--- a/nonebot/message.py
+++ b/nonebot/message.py
@@ -199,7 +199,7 @@ async def handle_event(bot: "Bot", event: "Event") -> Optional[Exception]:
     except NoLogException:
         show_log = False
     if show_log:
-        logger.opt(colors=True).info(log_msg)
+        logger.opt(colors=True).success(log_msg)
 
     state = {}
     coros = list(map(lambda x: x(bot, event, state), _event_preprocessors))
diff --git a/nonebot/plugin/__init__.py b/nonebot/plugin/__init__.py
index a8e1a2db..bf1d2827 100644
--- a/nonebot/plugin/__init__.py
+++ b/nonebot/plugin/__init__.py
@@ -946,7 +946,7 @@ def _load_plugin(manager: PluginManager, plugin_name: str) -> Optional[Plugin]:
         plugin = Plugin(plugin_name, module)
         plugins[plugin_name] = plugin
         logger.opt(
-            colors=True).info(f'Succeeded to import "<y>{plugin_name}</y>"')
+            colors=True).success(f'Succeeded to import "<y>{plugin_name}</y>"')
         return plugin
     except Exception as e:
         logger.opt(colors=True, exception=e).error(
diff --git a/pages/changelog.md b/pages/changelog.md
index 4315c502..ba36b2c6 100644
--- a/pages/changelog.md
+++ b/pages/changelog.md
@@ -4,7 +4,11 @@ sidebar: auto
 
 # 更新日志
 
-## v2.0.0a12
+## v2.0.0a14
+
+- 修改日志等级，支持输出等级自定义
+
+## v2.0.0a13.post1
 
 - 分离 `handler` 与 `matcher`
 - 修复 `cqhttp` secret 校验出错
diff --git a/tests/.env b/tests/.env
index c1b9dfb0..3f1ef917 100644
--- a/tests/.env
+++ b/tests/.env
@@ -1,3 +1,4 @@
 ENVIRONMENT=dev
+LOG_LEVEL=25
 CUSTOM_CONFIG=common
 FASTAPI_RELOAD_DIRS=["test_plugins"]
diff --git a/tests/.env.dev b/tests/.env.dev
index 0d7d878f..27917583 100644
--- a/tests/.env.dev
+++ b/tests/.env.dev
@@ -2,6 +2,7 @@ DRIVER=nonebot.drivers.fastapi
 HOST=0.0.0.0
 PORT=2333
 DEBUG=true
+# LOG_LEVEL=DEBUG
 
 SUPERUSERS=["123123123"]
 NICKNAME=["bot"]