As a revolution in software engineering, there are many reasons for the rapid development of DevOps in the past ten years. This study focuses on the practical impact of automation tools in the Chinese DevOps practice and a series of problems arising from automation tools. Systematic Literature Review (SLR) is used to identify the most popular tools, and finally 69 automation tools are identified from 50 researches, including Docker, Chef, Jenkins, and Puppet. Three levels of problems of automation tools in DevOps are summarized from some Chinese blogs using Gray Literature Review (GRL). Finally, ethnographic interview is used to analyze the opinions and suggestions from three aspects of DevOps practice in China, obtaining two effects of the automation tools:1) the role of automation tools in the DevOps practice is obvious at the beginning, and DevOps practice is considered using automation tools; 2) software organizations need to reduce the dependence on automation tools and form their own culture of DevOps. To solve the problems of automation tools in Chinese DevOps practice, this paper summarizes three suggestions from the interview and gives a paradigm.