The adult college entrance examination fees of National Open University vary according to different regions and majors. Generally speaking, the annual tuition fee is about 2000-3000 yuan, and the total cost is about 7000-8000 yuan. The specific cost standard depends on the specialty. Generally speaking, art majors are the highest, followed by science and engineering majors and then literature and history majors.

However, it should be noted that the tuition fees of the National Open University will change every year, so the total tuition fees of that year still need to pay attention to the latest notice of the National Open University. There may be some differences in different regions and majors, and the specific fees need to be consulted in detail according to the specific situation.

In addition to tuition, students also need to bear some other expenses, such as textbook fees and examination fees. These fees depend on individual circumstances, but they are generally not too expensive.

The adult college entrance examination fee of National Open University is relatively reasonable, which is suitable for those students who can't take traditional full-time courses. Students can choose their own majors and courses according to their actual situation and needs, and improve their academic qualifications and knowledge level through study and efforts.