diff --git a/README.md b/README.md
index 7ec7217..6d853aa 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,8 @@ pytdx 年久失修：多处已知解析 bug、Python 2 包袱、无类型注解
 - **高可用传输**：同步/异步均支持 `ping_all()`、`from_best_host()`、断线自动重连
 - **修复 pytdx 已知 bug**（见下文）
 - **保留原始字节**：每条数据记录含 `_raw: bytes`，未知字段以 `unknown_N` 命名而非丢弃
+- **保活心跳机制**：`AsyncTdxClient` 自动发送心跳包，确保长连接生产环境稳定性
+- **全市场涨跌统计**：一键获取全 A 股涨/跌/平家数及总成交额
 - **离线 + 本地传输回归测试**：覆盖解析、异步并发串行化、超时、自动重连与坏包处理
 
 ## 安装
diff --git a/src/xmtdx/client.py b/src/xmtdx/client.py
index c4f97ec..b7c56b0 100644
--- a/src/xmtdx/client.py
+++ b/src/xmtdx/client.py
@@ -23,6 +23,7 @@ from .models.enums import KlineCategory, Market
 from .models.finance import CompanyInfoCategory, FinanceInfo, TdxBlock, XdxrRecord
 from .models.quote import SecurityQuote
 from .models.security import SecurityInfo
+from .models.stats import MarketStat
 from .models.timeseries import MinuteBar, TransactionRecord
 from .transport.async_ import AsyncTdxConnection
 from .transport.sync import KNOWN_HOSTS, TdxConnection, ping_all
@@ -269,6 +270,22 @@ class TdxClient:
                 break
         return bytes(full_data)
 
+    def get_market_stat(self) -> MarketStat:
+        """获取 A 股全市场涨跌统计概况。"""
+        # 通达信中 880005 是行情统计代码
+        quotes = self.get_security_quotes([(Market.SH, "880005")])
+        if not quotes:
+            raise RuntimeError("无法获取市场统计数据")
+        q = quotes[0]
+        return MarketStat(
+            up_count=int(q.price),
+            down_count=int(q.pre_close),
+            neutral_count=int(q.open),
+            total_count=int(q.high),
+            total_amount=q.amount,
+            total_volume=q.vol,
+        )
+
 
 # ============================================================
 # 异步客户端
@@ -493,3 +510,18 @@ class AsyncTdxClient:
                 break
         return bytes(full_data)
 
+    async def get_market_stat(self) -> MarketStat:
+        """获取 A 股全市场涨跌统计概况。"""
+        quotes = await self.get_security_quotes([(Market.SH, "880005")])
+        if not quotes:
+            raise RuntimeError("无法获取市场统计数据")
+        q = quotes[0]
+        return MarketStat(
+            up_count=int(q.price),
+            down_count=int(q.pre_close),
+            neutral_count=int(q.open),
+            total_count=int(q.high),
+            total_amount=q.amount,
+            total_volume=q.vol,
+        )
+
diff --git a/src/xmtdx/models/stats.py b/src/xmtdx/models/stats.py
new file mode 100644
index 0000000..7027511
--- /dev/null
+++ b/src/xmtdx/models/stats.py
@@ -0,0 +1,12 @@
+"""验证市场概况模型。"""
+from dataclasses import dataclass
+
+@dataclass
+class MarketStat:
+    """全市场涨跌统计概况。"""
+    up_count: int       # 上涨家数
+    down_count: int     # 下跌家数
+    neutral_count: int  # 平盘家数
+    total_count: int    # 总家数
+    total_amount: float # 总成交额
+    total_volume: float # 总成交量