diff --git a/app/adapters/__pycache__/internal_data_service.cpython-311.pyc b/app/adapters/__pycache__/internal_data_service.cpython-311.pyc
index e39274a..0c26ca1 100644
Binary files a/app/adapters/__pycache__/internal_data_service.cpython-311.pyc and b/app/adapters/__pycache__/internal_data_service.cpython-311.pyc differ
diff --git a/app/adapters/internal_data_service.py b/app/adapters/internal_data_service.py
index 5ff0dbf..f408eca 100644
--- a/app/adapters/internal_data_service.py
+++ b/app/adapters/internal_data_service.py
@@ -3,12 +3,21 @@
 将 AmazingData SDK 的调用封装为内部接口
 对外接口不直接调用 SDK，而是通过内部接口调用
 """
+import time
+import functools
 import pandas as pd
 from datetime import datetime, timedelta
 from typing import List, Optional, Dict, Any
 
 from app.core.logger import info, error
 
+# 导入指标统计
+try:
+    from app.core.metrics import record_internal_call
+    METRICS_AVAILABLE = True
+except ImportError:
+    METRICS_AVAILABLE = False
+
 
 # 数据库相关导入（可选，如果数据库未配置则回退到SDK）
 try:
@@ -20,12 +29,43 @@ except ImportError:
     DB_AVAILABLE = False
 
 
+def track_internal_call(category: str):
+    """对内接口调用统计装饰器
+    
+    Args:
+        category: 接口类别 (market/base/info)
+    """
+    def decorator(func):
+        @functools.wraps(func)
+        def wrapper(*args, **kwargs):
+            if not METRICS_AVAILABLE:
+                return func(*args, **kwargs)
+            
+            method_name = func.__name__
+            start_time = time.time()
+            status = "success"
+            
+            try:
+                result = func(*args, **kwargs)
+                return result
+            except Exception as e:
+                status = "error"
+                raise e
+            finally:
+                duration = time.time() - start_time
+                record_internal_call(category, method_name, status, duration)
+        
+        return wrapper
+    return decorator
+
+
 class _MarketDataInternal:
     """市场数据内部接口 - 封装 _market_data"""
     
     def __init__(self, market_data):
         self._market_data = market_data
     
+    @track_internal_call("market")
     def login(self, username: str, password: str, ip: str, port: str) -> bool:
         """登录"""
         try:
@@ -39,6 +79,7 @@ class _MarketDataInternal:
             error(f"[_MarketDataInternal] Login failed: {e}")
             raise
     
+    @track_internal_call("market")
     def is_login(self) -> bool:
         """检查登录状态"""
         try:
@@ -46,6 +87,7 @@ class _MarketDataInternal:
         except Exception:
             return False
     
+    @track_internal_call("market")
     def query_kline(
         self,
         code_list: List[str],
@@ -65,6 +107,7 @@ class _MarketDataInternal:
             error(f"[_MarketDataInternal] Query kline failed: {e}")
             return {}
     
+    @track_internal_call("market")
     def query_snapshot(
         self,
         code_list: List[str],
@@ -89,6 +132,7 @@ class _BaseDataInternal:
     def __init__(self, base_data):
         self._base_data = base_data
     
+    @track_internal_call("base")
     def get_code_list(self, security_type: str) -> List[str]:
         """获取代码列表 - 优先从数据库获取，无数据则从SDK获取并缓存"""
         # 1. 先尝试从数据库获取
@@ -171,6 +215,7 @@ class _BaseDataInternal:
         finally:
             db.close()
     
+    @track_internal_call("base")
     def get_future_code_list(self, security_type: str) -> List[str]:
         """获取期货代码列表"""
         try:
@@ -179,6 +224,7 @@ class _BaseDataInternal:
             error(f"[_BaseDataInternal] Get future code list failed: {e}")
             return []
     
+    @track_internal_call("base")
     def get_code_info(self, security_type: str) -> pd.DataFrame:
         """获取代码信息"""
         try:
@@ -187,6 +233,7 @@ class _BaseDataInternal:
             error(f"[_BaseDataInternal] Get code info failed: {e}")
             return pd.DataFrame()
     
+    @track_internal_call("base")
     def get_calendar(self, market: str) -> List[int]:
         """获取交易日历 - 优先从数据库获取，无数据则从SDK获取并缓存"""
         # 1. 先尝试从数据库获取
@@ -270,6 +317,7 @@ class _BaseDataInternal:
         finally:
             db.close()
     
+    @track_internal_call("base")
     def get_adj_factor(
         self,
         code_list: List[str],
@@ -287,6 +335,7 @@ class _BaseDataInternal:
             error(f"[_BaseDataInternal] Get adj factor failed: {e}")
             return pd.DataFrame()
     
+    @track_internal_call("base")
     def get_backward_factor(
         self,
         code_list: List[str],
@@ -304,6 +353,7 @@ class _BaseDataInternal:
             error(f"[_BaseDataInternal] Get backward factor failed: {e}")
             return pd.DataFrame()
     
+    @track_internal_call("base")
     def get_etf_pcf(self, code_list: List[str]) -> tuple:
         """获取ETF申赎数据"""
         try:
@@ -312,6 +362,7 @@ class _BaseDataInternal:
             error(f"[_BaseDataInternal] Get ETF PCF failed: {e}")
             return ({}, {})
     
+    @track_internal_call("base")
     def get_hist_code_list(self, security_type: str) -> pd.DataFrame:
         """获取历史代码列表"""
         try:
@@ -327,6 +378,7 @@ class _InfoDataInternal:
     def __init__(self, info_data):
         self._info_data = info_data
     
+    @track_internal_call("info")
     def get_equity_structure(
         self,
         code_list: List[str],
@@ -344,6 +396,7 @@ class _InfoDataInternal:
             error(f"[_InfoDataInternal] Get equity structure failed: {e}")
             return {}
     
+    @track_internal_call("info")
     def get_share_holder(
         self,
         code_list: List[str],
@@ -368,6 +421,7 @@ class _InfoDataInternal:
             error(f"[_InfoDataInternal] Get share holder failed: {e}")
             return {}
     
+    @track_internal_call("info")
     def get_holder_num(
         self,
         code_list: List[str],
@@ -389,6 +443,7 @@ class _InfoDataInternal:
             error(f"[_InfoDataInternal] Get holder num failed: {e}")
             return {}
     
+    @track_internal_call("info")
     def get_income(
         self,
         code_list: List[str],
@@ -410,6 +465,7 @@ class _InfoDataInternal:
             error(f"[_InfoDataInternal] Get income failed: {e}")
             return {}
     
+    @track_internal_call("info")
     def get_balance_sheet(
         self,
         code_list: List[str],
@@ -431,6 +487,7 @@ class _InfoDataInternal:
             error(f"[_InfoDataInternal] Get balance sheet failed: {e}")
             return {}
     
+    @track_internal_call("info")
     def get_cash_flow(
         self,
         code_list: List[str],
@@ -452,6 +509,7 @@ class _InfoDataInternal:
             error(f"[_InfoDataInternal] Get cash flow failed: {e}")
             return {}
     
+    @track_internal_call("info")
     def get_profit_express(
         self,
         code_list: List[str],
@@ -473,6 +531,7 @@ class _InfoDataInternal:
             error(f"[_InfoDataInternal] Get profit express failed: {e}")
             return {}
     
+    @track_internal_call("info")
     def get_profit_notice(
         self,
         code_list: List[str],
@@ -494,6 +553,7 @@ class _InfoDataInternal:
             error(f"[_InfoDataInternal] Get profit notice failed: {e}")
             return {}
     
+    @track_internal_call("info")
     def get_margin_summary(
         self,
         local_path: str,
@@ -513,6 +573,7 @@ class _InfoDataInternal:
             error(f"[_InfoDataInternal] Get margin summary failed: {e}")
             return pd.DataFrame()
     
+    @track_internal_call("info")
     def get_margin_detail(
         self,
         code_list: List[str],
@@ -534,6 +595,7 @@ class _InfoDataInternal:
             error(f"[_InfoDataInternal] Get margin detail failed: {e}")
             return {}
     
+    @track_internal_call("info")
     def get_long_hu_bang(
         self,
         code_list: List[str],
@@ -555,6 +617,7 @@ class _InfoDataInternal:
             error(f"[_InfoDataInternal] Get long hu bang failed: {e}")
             return pd.DataFrame()
     
+    @track_internal_call("info")
     def get_block_trading(
         self,
         code_list: List[str],
@@ -576,6 +639,7 @@ class _InfoDataInternal:
             error(f"[_InfoDataInternal] Get block trading failed: {e}")
             return pd.DataFrame()
     
+    @track_internal_call("info")
     def get_index_constituent(
         self,
         code_list: List[str],
@@ -593,6 +657,7 @@ class _InfoDataInternal:
             error(f"[_InfoDataInternal] Get index constituent failed: {e}")
             return {}
     
+    @track_internal_call("info")
     def get_index_weight(
         self,
         code_list: List[str],
@@ -614,6 +679,7 @@ class _InfoDataInternal:
             error(f"[_InfoDataInternal] Get index weight failed: {e}")
             return {}
     
+    @track_internal_call("info")
     def get_fund_share(
         self,
         code_list: List[str],
@@ -635,6 +701,7 @@ class _InfoDataInternal:
             error(f"[_InfoDataInternal] Get fund share failed: {e}")
             return {}
     
+    @track_internal_call("info")
     def get_kzz_issuance(
         self,
         code_list: List[str],
@@ -652,6 +719,7 @@ class _InfoDataInternal:
             error(f"[_InfoDataInternal] Get kzz issuance failed: {e}")
             return {}
     
+    @track_internal_call("info")
     def get_history_stock_status(
         self,
         code_list: List[str],
diff --git a/app/core/__pycache__/metrics.cpython-311.pyc b/app/core/__pycache__/metrics.cpython-311.pyc
index 01eaa79..b7c6c33 100644
Binary files a/app/core/__pycache__/metrics.cpython-311.pyc and b/app/core/__pycache__/metrics.cpython-311.pyc differ
diff --git a/app/core/metrics.py b/app/core/metrics.py
index 1f3b5b3..31c4113 100644
--- a/app/core/metrics.py
+++ b/app/core/metrics.py
@@ -3,7 +3,36 @@ from contextvars import ContextVar
 from typing import Callable, Optional
 import time
 
-from prometheus_client import Counter, Histogram, Gauge, Info, generate_latest, CONTENT_TYPE_LATEST
+# 尝试导入 prometheus_client，如果不存在则提供空实现
+try:
+    from prometheus_client import Counter, Histogram, Gauge, Info, generate_latest, CONTENT_TYPE_LATEST
+    PROMETHEUS_AVAILABLE = True
+except ImportError:
+    PROMETHEUS_AVAILABLE = False
+    # 提供空的指标类
+    class _MockMetric:
+        def __init__(self, *args, **kwargs):
+            pass
+        def labels(self, *args, **kwargs):
+            return self
+        def inc(self, *args, **kwargs):
+            pass
+        def dec(self, *args, **kwargs):
+            pass
+        def set(self, *args, **kwargs):
+            pass
+        def observe(self, *args, **kwargs):
+            pass
+        def info(self, *args, **kwargs):
+            pass
+    
+    Counter = _MockMetric
+    Histogram = _MockMetric
+    Gauge = _MockMetric
+    Info = _MockMetric
+    generate_latest = lambda: b""
+    CONTENT_TYPE_LATEST = "text/plain"
+
 from fastapi import Request, Response
 from starlette.middleware.base import BaseHTTPMiddleware
 
@@ -75,6 +104,25 @@ cache_hit_ratio = Gauge(
     ['cache_type']
 )
 
+# ============================================
+# 对内接口调用统计（Internal SDK Interface）
+# ============================================
+
+# 对内接口调用计数器
+internal_calls_total = Counter(
+    'internal_calls_total',
+    'Total internal SDK interface calls',
+    ['category', 'method', 'status']  # category: market/base/info, method: 方法名, status: success/error
+)
+
+# 对内接口调用持续时间
+internal_call_duration_seconds = Histogram(
+    'internal_call_duration_seconds',
+    'Internal SDK interface call duration',
+    ['category', 'method'],
+    buckets=[.001, .005, .01, .025, .05, .1, .25, .5, 1.0, 2.5, 5.0, 10.0]
+)
+
 # 应用信息
 app_info = Info(
     'market_data_service',
@@ -151,6 +199,31 @@ def set_cache_hit_ratio(cache_type: str, ratio: float):
     cache_hit_ratio.labels(cache_type=cache_type).set(ratio)
 
 
+# ============================================
+# 对内接口调用统计函数
+# ============================================
+
+def record_internal_call(category: str, method: str, status: str, duration: float):
+    """记录对内接口调用指标
+    
+    Args:
+        category: 接口类别 (market/base/info)
+        method: 方法名
+        status: 状态 (success/error)
+        duration: 调用耗时（秒）
+    """
+    internal_calls_total.labels(
+        category=category,
+        method=method,
+        status=status
+    ).inc()
+    
+    internal_call_duration_seconds.labels(
+        category=category,
+        method=method
+    ).observe(duration)
+
+
 def set_app_info(version: str, build_time: str, git_commit: str = ""):
     """设置应用信息"""
     app_info.info({