Abstract: In order to solve the conflict of individual utility and social welfare on account of participants’ selfishness in the cloud resource allocation,a cloud market model for task request was proposed under the assumption that all participants are rational．Then,a resource allocation based on mechanism theory for multi-type resources of cloud market pricing mechanism which meets effective allocation and reasonable pricing in complex task of users was presented.The mechanism can maximize the individual utility and social welfare．Finally,the mechanism was proved to satisfy individual rationality,budget balance and incentive compatibility,and the algorithm of implementation mechanism was also given with cost minimization and utility maximization.

Key words: Cloud service,Mechanism theory,Resource allocation,Pricing mechanism