Abstract: This paper reviews the current status of security standards related to cloud computing services at home and abroad, teases out the research status and achievements of international and foreign standards organizations in the United States and European Union on cloud computing services security, and analyzes the major domestic standards organizations, such as TC260 andCCSA,in the cloud service security aspects of standardization work status. In cloud computing service security authentication, the paper compares the existing international and domestic cloud computing service authentication system, and analyzes the current situation and existing problems of cloud service security evaluation in the United States, European Union and China. In orderTo meet the security requirements arising from the rapid development of the cloud computing industry, this paper concludes that it is necessary to research and further improve the cloud service security authentication mechanism based on the existing system.

Key words: cloud computing service, security standard, security certification