Case analysis is a difficult problem for beginners. The most important point in writing a case analysis is that this case should have a problem for readers to solve. We should provide enough information in the case analysis to make readers understand what these problems are. Moreover, readers can finally provide a reasonable solution to this problem by thinking and analyzing the information we provide. Writing an interesting case study is a bit like writing a detective novel. Our writing needs to be fascinating to ensure that readers are interested in this issue. A good case not only needs to describe the problem, but also needs to make readers feel the same way about the problems faced by the author; On the other hand, you need to sort out all the information through description, and finally draw a conclusion, so as to give readers as much information as possible, so that readers can naturally get the answer to the question without thinking hard. The following are some suggestions, so that readers can have room to think about the problems when writing case analysis, and at the same time, they can understand the problems you described well and provide enough information to draw a conclusion: there are three basic steps in writing: preliminary research, collation and analysis, and actual writing. Writing should start with research, but even if you formally enter the writing stage, you need to go back and do research.