Integrators were introduced into a two-level supply chain, which consisted of suppliers and manufactures. The coordination of integrated supply-based threelevel supply chain with uncertain demands and sensitive prices was studied. A coordination model of revenue sharing (RS) contracts was built which could meet channel coordination and integrated supply. The permitted values and their determined processes of the parameters in revenue sharing contracts were given, and they were illustrated with an example. The output and sale price of products can be determined by this model. The profit allocation of the supply chain among partners can also be described by changing the parameters values in revenue sharing contracts.