CET-4 is a national teaching examination presided over by the Higher Education Department of the Ministry of Education. The main target of the examination is college students, undergraduates or graduate students who have completed CET-4 according to the educational syllabus. The standardized examination of CET-4 and CET-6 1986 was prepared at the end of the year, and 1987 was officially implemented. This is a national exam.

According to the regulations of the Ministry of Education, there is no passing line for CET-4 and CET-6, and you can apply for CET-6 if you score more than 425, so it is generally considered that the passing line for CET-4 and CET-6 is 425.

The total score of Band 4 and Band 6 is 7 10. Moreover, there is a four-level file backup, which cannot be modified without authorization, and the modification is invalid.