diff --git a/vnpy/gateway/futu/futu_gateway.py b/vnpy/gateway/futu/futu_gateway.py
index 5a875236..c12f4266 100644
--- a/vnpy/gateway/futu/futu_gateway.py
+++ b/vnpy/gateway/futu/futu_gateway.py
@@ -343,7 +343,7 @@ class FutuGateway(BaseGateway):
                 symbol=symbol,
                 exchange=exchange,
                 direction=Direction.LONG,
-                volume=float(row["qty"]),
+                volume=row["qty"],
                 frozen=(float(row["qty"]) - float(row["can_sell_qty"])),
                 price=float(row["pl_val"]),
                 pnl=float(row["cost_price"]),
@@ -463,8 +463,8 @@ class FutuGateway(BaseGateway):
                 orderid=str(row["order_id"]),
                 direction=DIRECTION_FUTU2VT[row["trd_side"]],
                 price=float(row["price"]),
-                volume=float(row["qty"]),
-                traded=float(row["dealt_qty"]),
+                volume=row["qty"],
+                traded=row["dealt_qty"],
                 status=STATUS_FUTU2VT[row["order_status"]],
                 time=row["create_time"].split(" ")[-1],
                 gateway_name=self.gateway_name,
@@ -490,7 +490,7 @@ class FutuGateway(BaseGateway):
                 tradeid=tradeid,
                 orderid=row["order_id"],
                 price=float(row["price"]),
-                volume=float(row["qty"]),
+                volume=row["qty"],
                 time=row["create_time"].split(" ")[-1],
                 gateway_name=self.gateway_name,
             )