Considering a short-life-cycle product supply chain consisting of one supplier and two retailers，in which the demand faced by the two retailers is independent and product transshipment between the two retailers is allowed． The ordering decision models with transshipment and without transshipment between the retailers，as well as with the market satisfaction rate constraint and without market satisfaction rate constraint are developed，respectively． The solutions for transshipment policy and non-transshipment policy are derived accordingly．It can be shown that，whether the market satisfaction rate constraint is considered or not，if unit product transshipment cost is not greater than a specific value，the retailers’order quantity and expected total cost resulted from the transshipment policy is not greater than that from non-transshipment policy． At last，a numerical example is given to demonstrate the effect of emergency transshipment policy and analyze the impact of market satisfaction rate and unit transshipment cost on the transshipment policy． Some helpful managerial insights are drawn．