Ruijie JCOS cloud management platform is the first cloud management platform based on OpenStack principle in China. It has the advantages of stable operation, fast deployment, wide compatibility and high performance. Taking the basic technology of cloud platform management as the core, this paper gives a general description of the deploy of the whole cloud platform, from which we can understand and analyze the shortcomings of building traditional data center, and then illustrate the general process of integrating resources and reducing costs by virtualization technology in combination with real application practice.