Abstract: This paper considers a two-echelon supply chain system with one distributoy,and one manufacturer,who supply the customers with one kind of short life cycle product.It establishes delivery time and quantity decision models separately in decentralized decision mode and centralized decision mode when the market demand and the manufactures delivery time are random,and it also analyses the optimal decisions under these two modes.Case and numerical analyses show that coordination between manufacturer and distributor can not only shorten the delivery time and increase the whole supply chain systems profit,but also increase the products supply in the market.

Key words: supply chain, coordination decision, delivery time, short life cycle product