1. Identify your research interests and professional fields: think about and determine your research interests or professional fields. Understand and pay attention to the frontier knowledge, hot issues and research trends in this field;
2. Investigation of existing literature and research results: By consulting relevant literature and research results, we can understand what research, solved or unsolved problems exist in this field, and analyze the research status and research gap;
3. Demonstrate feasibility and feasibility: demonstrate the feasibility and feasibility of the selected topic, such as discussing whether relevant data can be obtained and whether there is enough time and resources for research;
4. Discussion with tutors or related experts: Before determining the basis of topic selection, it is suggested to discuss and consult with tutors or experts in related fields and listen to their suggestions and opinions to ensure the rationality and feasibility of topic selection. When writing the basis of graduation thesis, we should strictly abide by the requirements of the college or tutor and write in accordance with the prescribed format and structure.