Abstract: Aiming at Virtual Machine load balancing problem in Cloud computing,in order to realize the efficient sche-duling of Virtual Machine load ba-lancing in Cloud computing and meet the user’s QoS need,a Virtual Machine load balancing method based on Muiti-dimensional QoS is proposed.Firstly,the mathematical model of cloud resource scheduling is built,Then,a Virtual Machine load balancing algorithm based on ant colony optimization in Cloud computing and Muiti-dimensional QoS is intorduced,Finally,the CloudSim simulation experiment shows the algorithm can solve the Virtual Machine load balancing problem effectively,can reduce the load balance deviation and satisfy the need of Virtual Machine load balancing in Cloud computing.

Key words: Ant colony optimization,Virtual machine,Cloud computing,QoS,Load balancing