This article reviews cloud computing and cloud computing implementation in China, and summarizes the status of development as “having a clear concept but lacking operational measures, following what others say but without asking why”. The development of cloud computing in China has shown two major features: emphasizing infrastructure construction but looking down on applications, and having laid a good foundation, but being still left behind as compared to some developed countries. The academia and industry have already recognized the great potential of cloud computing, and paid much attention to it. However, the absence of standards in cloud computing implementation has become a bottleneck in our cloud computing industry. From the practical point of view and by understanding the importance of cloud computing and Internet service development, this article points out that cloud computing is something for solving different problems so as to bring about a cloud revolution, rather than just a change of business mode as which is generally considered. In view of this, this article proposes to give definitions of cloud computing and cloud computing implementation standard.