1. Feasibility of topic selection: First of all, you need to ensure that the topic selection of your thesis is feasible. This means that you need to have enough resources and time to finish your research. If your topic is too complicated or needs a lot of data, then you may need to reconsider your topic.

2. Relevance of the topic: The topic of your thesis should be closely related to your professional field. If your topic has nothing to do with your research field, then your paper may be considered of no academic value.

3. Unique theme: The theme of your thesis should be unique, not one that has been widely studied. If your topic has been studied a lot, you may need to find a new angle or method to study it.

4. Interest in the topic: The topic of your thesis should be of interest to you, so that you can remain enthusiastic in the research process. If you are not interested in your topic, you may feel bored or depressed during the research.

5. Clarity of topic selection: The topic selection of your thesis should be clear, so that you can clearly know your research objectives and research methods. If your topic is vague, you may get lost in the process of research.

6. Realistic theme: The theme of your thesis should be realistic, so that your research results may have practical application value. If your topic is too theoretical, then your research results may not be applied to practice.

7. Theme innovation: Although you have to choose a theme that you are already familiar with, it doesn't mean that you can't innovate on this theme. You can try to look at your subject from a new angle, or study your subject with a new research method.