In East China Jiaotong University, students' GPA is managed and registered by the academic affairs office of the school and recorded in the student registration system. Grade point is a way to evaluate academic performance. The calculation method of East China Jiaotong University is: GPA = score/10-5, credit GPA = credits * GPA = credits * (score/10-5).

The grade point system is one of the important supporting measures to implement the credit system, the evaluation of academic performance during college, and the basis for many employers to select talents, which cannot be modified at will. Since 1985 began to advocate the implementation of the credit system in China, there have been many discussions and studies on the credit system, and the discussion on the grade point system is relatively lacking, which has affected the smooth implementation of the credit system.