1. First of all, do a good job in interview design, on-site interview form and interview questions according to the selected topics.

2. Secondly, we should use appropriate research methods and data processing methods, because most interview papers need to use qualitative research, adopt corresponding tools to extract key areas from interview events, and then make corresponding analysis.

3. Finally, we should pay attention to whether the interview materials are related to the topic and whether we can find the corresponding specific research value. If not, we may need to interview again until we get a satisfactory result.