The utilization of supply chain knowledge in shipbuilding industry lags other industries. This paper proposed a new Supplier Selection Strategy Model to help shipbuilding companies making supplier selecting decisions under different market quotations. Two calculation examples in the typical Buyer Market and Seller Market are described respectively. It is concluded that under different market quotations, the selection of supplier will be completely different because the market condition will influence the shipbuilding companies’ behavior significantly. At last, some suggestions are proposed for future researches in order to provide decidion supports for shipbuilding companies and improve their competitiveness in changing market conditions.