diff --git a/internal/logic/app/order/preCreateOrderLogic.go b/internal/logic/app/order/preCreateOrderLogic.go
index e131734..1f72559 100644
--- a/internal/logic/app/order/preCreateOrderLogic.go
+++ b/internal/logic/app/order/preCreateOrderLogic.go
@@ -63,7 +63,7 @@ func (l *PreCreateOrderLogic) PreCreateOrder(req *types.PurchaseOrderRequest) (r
 			}
 			return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "find coupon error: %v", err.Error())
 		}
-		if couponInfo.Count <= couponInfo.UsedCount {
+		if couponInfo.Count > 0 && couponInfo.Count <= couponInfo.UsedCount {
 			return nil, errors.Wrapf(xerr.NewErrCode(xerr.CouponInsufficientUsage), "coupon used")
 		}
 		couponSub := tool.StringToInt64Slice(couponInfo.Subscribe)
@@ -79,7 +79,7 @@ func (l *PreCreateOrderLogic) PreCreateOrder(req *types.PurchaseOrderRequest) (r
 			l.Errorw("[Purchase] Database query error", logger.Field("error", err.Error()), logger.Field("user_id", u.Id), logger.Field("coupon", req.Coupon))
 			return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "find coupon error: %v", err.Error())
 		}
-		if count >= couponInfo.UserLimit {
+		if couponInfo.UserLimit > 0 && count >= couponInfo.UserLimit {
 			return nil, errors.Wrapf(xerr.NewErrCode(xerr.CouponInsufficientUsage), "coupon limit exceeded")
 		}
 		coupon = calculateCoupon(amount, couponInfo)