Abstract: In order to further improve the revenue of cloud service providers, the author proposed a revenue optimization algorithm based on alliance perception in hybrid cloud environment under the condition of reducing the cost of cloud service provider resources. The algorithm built a cloud service provider alliance, and considered  two types of virtual machine request: spot virtual machine and ondemand virtual machine. The cloud service providers at the peak load could still get the maximum revenue by outsourcing requests to other members of the alliance or the way of terminating spot virtual machine.

Key words: hybrid cloud, alliance perception, revenue optimization