The national open university exam is relatively easy. On the one hand, the Open University of China implements the policy of entrance examination-free, that is to say, after registration, you can get a student status without going through a strict entrance examination. On the other hand, compared with other examination forms in adult education, such as adult college entrance examination or self-taught examination, the final examination of National Open University is relatively less difficult. It is not difficult for students to pass the exam as long as they master the main points of each course and review properly before the exam.