diff --git a/qlib/config.py b/qlib/config.py
index a0b4aad28b..c3683cda2a 100644
--- a/qlib/config.py
+++ b/qlib/config.py
@@ -22,7 +22,7 @@
 from typing import Callable, Optional, Union
 from typing import TYPE_CHECKING
 
-from qlib.constant import REG_CN, REG_US, REG_TW
+from qlib.constant import REG_CN, REG_US, REG_TW, REG_HK
 
 if TYPE_CHECKING:
     from qlib.utils.time import Freq
@@ -307,6 +307,11 @@ def register_from_C(config, skip_register=True):
         "limit_threshold": 0.1,
         "deal_price": "close",
     },
+    REG_HK: {
+        "trade_unit": 100,
+        "limit_threshold": 0.1,
+        "deal_price": "close",
+    },
 }
 
 
diff --git a/qlib/constant.py b/qlib/constant.py
index ac6c76ae22..194a3bebb4 100644
--- a/qlib/constant.py
+++ b/qlib/constant.py
@@ -10,6 +10,7 @@
 REG_CN = "cn"
 REG_US = "us"
 REG_TW = "tw"
+REG_HK = "hk"
 
 # Epsilon for avoiding division by zero.
 EPS = 1e-12