diff --git a/app/core/config.py b/app/core/config.py
index 1b5894f..4ab59b5 100644
--- a/app/core/config.py
+++ b/app/core/config.py
@@ -118,20 +118,25 @@ class GlobalConfig(ConfigBase):
 
     Data_UID = ConfigItem("Data", "UID", str(uuid.uuid4()), UUIDValidator())
     Data_LastStatisticsUpload = ConfigItem(
-        "Data", "LastStatisticsUpload", "2000-01-01 00:00:00"
+        "Data", "LastStatisticsUpload", "2000-01-01 00:00:00", DateTimeValidator()
     )
     Data_LastStageUpdated = ConfigItem(
-        "Data", "LastStageUpdated", "2000-01-01 00:00:00"
+        "Data", "LastStageUpdated", "2000-01-01 00:00:00", DateTimeValidator()
+    )
+    Data_StageTimeStamp = ConfigItem(
+        "Data", "StageTimeStamp", "2000-01-01 00:00:00", DateTimeValidator()
     )
-    Data_StageTimeStamp = ConfigItem("Data", "StageTimeStamp", "2000-01-01 00:00:00")
     Data_Stage = ConfigItem("Data", "Stage", "{ }")
     Data_LastNoticeUpdated = ConfigItem(
-        "Data", "LastNoticeUpdated", "2000-01-01 00:00:00"
+        "Data", "LastNoticeUpdated", "2000-01-01 00:00:00", DateTimeValidator()
     )
     Data_IfShowNotice = ConfigItem("Data", "IfShowNotice", True, BoolValidator())
     Data_Notice = ConfigItem("Data", "Notice", "{ }")
     Data_LastWebConfigUpdated = ConfigItem(
-        "Data", "LastWebConfigUpdated", "2000-01-01 00:00:00"
+        "Data", "LastWebConfigUpdated", "2000-01-01 00:00:00", DateTimeValidator()
+    )
+    Data_LastCheckVersion = ConfigItem(
+        "Data", "LastCheckVersion", "2000-01-01 00:00:00", DateTimeValidator()
     )
     Data_WebConfig = ConfigItem("Data", "WebConfig", "{ }")
 
diff --git a/app/models/ConfigBase.py b/app/models/ConfigBase.py
index d3770ed..973eaed 100644
--- a/app/models/ConfigBase.py
+++ b/app/models/ConfigBase.py
@@ -24,6 +24,7 @@ import json
 import uuid
 import win32com.client
 from copy import deepcopy
+from datetime import datetime
 from pathlib import Path
 from typing import List, Any, Dict, Union, Optional
 
@@ -112,6 +113,27 @@ class UUIDValidator(ConfigValidator):
         return value if self.validate(value) else str(uuid.uuid4())
 
 
+class DateTimeValidator(ConfigValidator):
+
+    def validate(self, value: Any) -> bool:
+        if not isinstance(value, str):
+            return False
+        try:
+            datetime.strptime(value, "%Y-%m-%d %H:%M:%S")
+            return True
+        except ValueError:
+            return False
+
+    def correct(self, value: Any) -> str:
+        if not isinstance(value, str):
+            return "2000-01-01 00:00:00"
+        try:
+            datetime.strptime(value, "%Y-%m-%d %H:%M:%S")
+            return value
+        except ValueError:
+            return "2000-01-01 00:00:00"
+
+
 class EncryptValidator(ConfigValidator):
     """加密数据验证器"""
 
diff --git a/app/services/update.py b/app/services/update.py
index e4d7b14..51aa877 100644
--- a/app/services/update.py
+++ b/app/services/update.py
@@ -27,6 +27,7 @@ import zipfile
 import requests
 import subprocess
 from packaging import version
+from datetime import datetime, timedelta
 from typing import List, Dict, Optional
 from pathlib import Path
 
@@ -49,6 +50,23 @@ class _UpdateHandler:
         self, current_version: str
     ) -> tuple[bool, str, Dict[str, List[str]]]:
 
+        if datetime.now() - timedelta(hours=4) < datetime.strptime(
+            Config.get("Data", "LastCheckVersion"), "%Y-%m-%d %H:%M:%S"
+        ):
+            logger.info("四小时内已进行过一次检查, 直接使用缓存的版本更新信息")
+            return (
+                (
+                    False
+                    if self.remote_version is None
+                    else bool(
+                        version.parse(self.remote_version)
+                        > version.parse(current_version)
+                    )
+                ),
+                current_version if self.remote_version is None else self.remote_version,
+                {},
+            )
+
         logger.info("开始检查更新")
 
         response = requests.get(
@@ -72,6 +90,9 @@ class _UpdateHandler:
                     )
 
         logger.success("获取版本信息成功")
+        await Config.set(
+            "Data", "LastCheckVersion", datetime.now().strftime("%Y-%m-%d %H:%M:%S")
+        )
 
         remote_version = version_info["data"]["version_name"]
         self.remote_version = remote_version