1. Literature review method: By consulting a large number of relevant documents, make a comprehensive and in-depth analysis of a specific problem or topic, summarize the main viewpoints, research status, shortcomings, opportunities, limitations and other contents, and compare the research results at hand with the published academic results to confirm the theory or facts of your own research.

2. Review method: This method mainly relies on data review, that is, a research method based on reviewing a certain period or an event, trying to sort out historical changes, accumulate experience and explore laws.

3. Experimental method: In the laboratory or existing cases, the purpose of testing hypotheses and solving problems is achieved through well-designed experiments. The reason why this method is widely used in scientific research is that the results it gets reflect the real phenomenon and have high objectivity.

4. Investigation method: Questionnaire survey, interview and observation are used to understand the problem and obtain information from the perspective of people. The core part of the survey method is the selection rules of sample individuals, and its scientificity and representativeness will have a great influence on the wise and accurate analysis results.

5. Analysis method: classify and divide the target object according to a certain scale, summarize the main characteristics of each classification item, and compare it with many other things or phenomena to find out the similarities and differences. This method is more suitable for the quantitative field, and needs to be supported by good basic statistical knowledge.

The above research methods are commonly used in writing papers. Different research fields and problems need different research methods to ensure the effectiveness and reliability of research results, and at the same time, we should balance theoretical methods and practical methods as much as possible in the choice of methods.