According to the official website Admissions Guide of Yangzhou University, it usually takes four years for a doctor to complete his studies. At present, the management of doctoral students in China adopts the loose management mode of tutor leading students. Basically, students attend classes for one year and study papers with their tutors for two years. Most of the third-year papers can be replied if the quantity and quality are qualified. Graduated from internship in the fourth year.

Of course, different schools, different majors and different types of candidates are different. For example, full-time doctoral students, some special majors, the academic system will be longer, generally not more than 5 years.