The supply chain coordination decision problem of the manufacturer dual-channel is analyzed when the manufacturer-led supply chain is taken as the objective. With the introduction of two variables of the dual-channel price sensitive coefficient and the competition coefficient, three kinds of models of manufacturers concentrated decision, decentralized decision making and dual channel supply chain coordination strategy are established. Study results show that the profit of retailers and supply chain increase after the coordination of different contract strategies. By the coordination of two-part tariff and wholesale price contract, retailers can achieve coordination by paying fixed costs to manufacturers. And by coordinating the Shapley value assignment contract, the dual-channel supply chain can achieve coordination directly.