1. ability to search and filter information: researchers need to have good information retrieval skills and be able to find documents related to research topics. In addition, they also need the ability to filter information so as to select the most relevant and valuable parts from a large number of documents for review.

2. Ability to understand and analyze: Researchers need to have the ability to understand complex concepts and theories in order to deeply analyze and interpret the literature. This includes the understanding of research methods, the interpretation of research results and the prediction of research trends.

3. Writing ability: Researchers need to have clear, accurate and logical writing ability to express complex information and opinions in an easy-to-understand way. This includes mastering the language, planning the structure of the article and expounding the arguments.

4. Critical thinking ability: researchers need to have critical thinking ability to independently evaluate and reflect on the literature. This includes the evaluation of research methods, the questioning of research results and the reflection of research assumptions.

5. Organizational integration ability: Researchers need to have the ability to effectively organize and integrate a large amount of information and opinions, so as to form a consistent view in the literature review. This includes the classification of information, the ordering of opinions and the cohesion of arguments.

6. Time management ability: Writing a good literature review is a time-consuming process, and researchers need to have good time management ability to complete high-quality work within the specified time.

7. Communication skills: Researchers need to have good communication skills in order to communicate effectively with peers, tutors or readers. This includes the description of research topics, the description of research methods and the display of research results.