This paper firstly described the current status that rapid development of cloud computing and security issues had increasingly brought serious impact on SDN and cloud security; secondly analyzed problems and challenges that the new network deployment of SDN and virtualization brought; this paper presented virtualization

resource pooling of safety devices

through cooperation between security operation management platform and SDN controller

the flow of on-demand scheduling

automatic management of resources through adaptation of openstack

then verified and evaluated the effectiveness of the case. Through research in cloud security based on SDN network

this paper will make a considerable contribution to the development of China Mobile group’s public service cloud security services.