By introducing option mechanism, an option decision-making model, base on the revenue sharing contract about single-supplier and single-retailer, is set up. Furthermore, a design problem of supply chain mechanism is discussed. The research indicates that the supplier and retailer's enthusiasm is boosted at the same time by establishing appropriate executed price of option and a proper percentage of revenue. In addition, the optimal order quantities that make supply chain's aggregate profit maximized will be found and supply chain's coordination will be achieved.