1, full professor title: divided into four levels: first-class professor, second-class professor, third-class professor and fourth-class professor.

Distinguished professor: distinguished professor is a professor himself.

3. Visiting professor: a scholar specially invited by the client, who usually gives lectures or reports irregularly.

Part-time professor: a part-time visiting professor who mainly leads graduate students or conducts scientific research.

5. Honorary professor: generally the leader of a well-known old professor who has made special contributions.

6. General professors: they are all senior titles, with graduate students or high scientific research. Professor is a title in the higher education system, which refers to senior teachers and researchers who teach in universities or community colleges. However, there is a difference between professors and researchers. Professors have teaching tasks, but researchers don't. Professor is the highest level of university teachers' titles.