diff --git a/src/core/lib/order-plan.ts b/src/core/lib/order-plan.ts
index 3e3d7c2..a321447 100644
--- a/src/core/lib/order-plan.ts
+++ b/src/core/lib/order-plan.ts
@@ -18,11 +18,18 @@ export function makeOrderPlan(
     const orderPrice = String(order.price);
     const reduceOnly = order.reduceOnly === true;
     const matchedIndex = targets.findIndex((target, index) => {
+      const targetPrice = String(target.price);
+      const orderPriceValue = Number(orderPrice);
+      const targetPriceValue = Number(targetPrice);
+      const priceMatches =
+        Number.isFinite(orderPriceValue) && Number.isFinite(targetPriceValue)
+          ? Math.abs(orderPriceValue - targetPriceValue) <= 1e-8
+          : orderPrice === targetPrice;
       return (
         unmatched.has(index) &&
         target.side === order.side &&
         target.reduceOnly === reduceOnly &&
-        orderPrice === target.price // 直接使用字符串比较
+        priceMatches
       );
     });
     if (matchedIndex >= 0) {
@@ -39,4 +46,3 @@ export function makeOrderPlan(
   return { toCancel, toPlace };
 }
 
-