Resource scheduling is the key port of cloud computing resource management. One excellent method may enhance the efficiency of the whole cloud computing system, and effectively share resource in wide area. Genetic Algorithm has adaptability, global optimization ability and implicit parallelism, which is not in other methods. For the sake of scheduling effective resource to accomplish relevant task, improved genetic algorithm is adopted in cloud computing resource scheduling research. Finally, a simulation based on cloudsim is carried out, which proves the correctness and validity of the scheduling method mentioned in this paper.