Based on loss averse model, this paper introduces stockout averse  to modify the classic newsvendor model, and constructs newsvendor model with loss averse under stockout punishing. At the same time, the paper designs behavior experiments to verify the new model based on Microsoft VFP. As shown in the results, stockout penalty coefficient decreases with product profit. In highprofit product, decision maker with loss reverse will order more than the risk neutral decision maker. In lowprofit product, decision maker with loss reverse will order less than the risk neutral decision maker. However, the order quantity is equal within the balanceprofit product.