diff --git a/elastic/documents.py b/elastic/documents.py
index 43d1577..d2f05c3 100644
--- a/elastic/documents.py
+++ b/elastic/documents.py
@@ -48,3 +48,12 @@ class GlobalDocument(Document):
 
     class Django:
         model = ElasticNews
+
+
+@GLOBAL_INDEX.doc_type
+class AnalyticsDocument(Document):
+    overview = fields.TextField()
+    updated_at = fields.DateField()
+
+    class Django:
+        model = ElasticNews
diff --git a/elastic/es_connect.py b/elastic/es_connect.py
index c0b1f3d..8c4693c 100644
--- a/elastic/es_connect.py
+++ b/elastic/es_connect.py
@@ -5,7 +5,7 @@ Django版本的ES连接和操作模块
 from elasticsearch import Elasticsearch
 from elasticsearch_dsl import connections
 import os
-from .documents import AchievementDocument, UserDocument, GlobalDocument
+from .documents import AchievementDocument, UserDocument, GlobalDocument, AnalyticsDocument
 from .indexes import ACHIEVEMENT_INDEX_NAME, USER_INDEX_NAME, GLOBAL_INDEX_NAME
 import hashlib
 import time
@@ -46,10 +46,18 @@ def create_index_with_mapping():
         # --- 3. 处理全局类型索引 ---
         if not es.indices.exists(index=GLOBAL_TYPES_INDEX_NAME):
             GlobalDocument.init()
+            AnalyticsDocument.init()
             default_types = ['软著', '专利', '奖状']
             doc = GlobalDocument(type_list=default_types)
             doc.meta.id = 'types'
             doc.save()
+            try:
+                a = AnalyticsDocument()
+                a.meta.id = 'overview'
+                a.overview = json.dumps({})
+                a.save()
+            except Exception:
+                pass
             print(f"✅ 创建索引 {GLOBAL_TYPES_INDEX_NAME} 并写入默认类型")
         else:
             try:
@@ -60,6 +68,16 @@ def create_index_with_mapping():
                 doc.meta.id = 'types'
                 doc.save()
                 print("ℹ️ 全局类型文档缺失，已补充默认类型")
+            try:
+                AnalyticsDocument.get(id='overview')
+            except Exception:
+                try:
+                    a = AnalyticsDocument()
+                    a.meta.id = 'overview'
+                    a.overview = json.dumps({})
+                    a.save()
+                except Exception:
+                    pass
 
         # --- 4. 创建默认管理员用户（可选：也可检查用户是否已存在）---
         # 这里简单处理：每次初始化都写入（可能重复），建议加唯一性判断
@@ -309,7 +327,29 @@ def search_by_any_field(keyword):
         print(f"模糊搜索失败: {str(e)}")
         return []
 
-ANALYTICS_CACHE = {"data": None, "ts": 0}
+def _read_analytics_overview():
+    try:
+        doc = AnalyticsDocument.get(id='overview')
+        payload = getattr(doc, 'overview', '') or ''
+        try:
+            return json.loads(payload) if payload else {}
+        except Exception:
+            return {}
+    except Exception:
+        return {}
+
+def _write_analytics_overview(data: dict):
+    try:
+        try:
+            doc = AnalyticsDocument.get(id='overview')
+        except Exception:
+            doc = AnalyticsDocument()
+            doc.meta.id = 'overview'
+        doc.overview = json.dumps(data, ensure_ascii=False)
+        doc.save()
+        return True
+    except Exception:
+        return False
 
 def _compute_hist(range_gte: str, interval: str, fmt: str):
     from elasticsearch_dsl import Search
@@ -347,11 +387,16 @@ def compute_analytics():
     }
 
 def get_analytics_overview(force: bool = False):
-    now_ts = time.time()
-    if force or ANALYTICS_CACHE["data"] is None or (now_ts - ANALYTICS_CACHE["ts"]) > 3600:
-        ANALYTICS_CACHE["data"] = compute_analytics()
-        ANALYTICS_CACHE["ts"] = now_ts
-    return ANALYTICS_CACHE["data"]
+    if force:
+        data = compute_analytics()
+        _write_analytics_overview(data)
+        return data
+    data = _read_analytics_overview()
+    if data:
+        return data
+    data = compute_analytics()
+    _write_analytics_overview(data)
+    return data
 
 def _seconds_until_hour(h: int):
     now = datetime.now()
diff --git a/elastic/management/__init__.py b/elastic/management/__init__.py
new file mode 100644
index 0000000..8d1c8b6
--- /dev/null
+++ b/elastic/management/__init__.py
@@ -0,0 +1 @@
+ 
diff --git a/elastic/management/commands/analyze_analytics.py b/elastic/management/commands/analyze_analytics.py
new file mode 100644
index 0000000..01019bc
--- /dev/null
+++ b/elastic/management/commands/analyze_analytics.py
@@ -0,0 +1,8 @@
+from django.core.management.base import BaseCommand
+from elastic.es_connect import create_index_with_mapping, get_analytics_overview
+
+class Command(BaseCommand):
+    def handle(self, *args, **options):
+        create_index_with_mapping()
+        get_analytics_overview(force=True)
+        self.stdout.write("analytics updated")
\ No newline at end of file