The academic system of mathematics doctor in general subject teaching is three years, and it will be five years if master and doctor continue to study. If you can't finish the task, you may postpone graduation for half a year or one year. If it is a medical major, it may be one or two years longer than other majors.

1, different schools, different majors and different types of candidates are also different.

2. For example, for full-time doctoral students, the minimum academic system of Peking University is generally 4 years, and that of the National People's Congress is generally 3 years.

3. On-the-job doctoral students have a long time, but generally not more than 6 years. For some special majors, the academic system will be longer, generally not more than 5 years.

The basic academic system of doctoral students is related to the way of enrollment. At present, there are three ways to enroll doctors: direct enrollment of doctors, continuous enrollment of masters and open enrollment.

Undergraduate direct blog: a graduate student who has obtained a bachelor's degree and directly applied for a doctoral degree. The basic academic system is 5 years.

Master's continuing education: the basic years of master's and doctoral studies are more than 5 years.

Open recruitment: this situation refers to doctoral students who have obtained master's degrees, and the basic academic system is 4 years.