Adult college entrance examination is a specialized subject, also called a three-year secondary specialized school. Compared with ordinary higher education, there are obvious differences in enrollment targets, mainly for the needs of adult students and undergraduates for transfer and vocational training. Some college graduates can enter the professional field and make positive contributions.

Adult college entrance examination is a kind of college degree obtained through the adult higher education qualification promotion examination (hereinafter referred to as adult college entrance examination). Compared with undergraduate and postgraduate education in ordinary colleges and universities, it has different characteristics such as enrollment object, curriculum, length of educational system and tuition fee. Adult college entrance examination graduates can get a college diploma, which is considered as an opportunity for adults with certain professional skills and practical work experience to further their studies, which is conducive to balancing work and family pressure. Adult college entrance examination has gradually replaced "secondary school" education and become one of the important ways for career development, academic promotion and further study.

College and technical secondary school are two different levels of education in China's higher education system, and they have the following main differences:

1. The enrollment targets are different: the junior college is for high school graduates or people with equivalent education, and the secondary school is mostly for junior high school or junior high school graduates.

2. The length of schooling varies: junior college is generally about 3 years, compared with secondary school, which is usually shorter.

3. Different school settings: junior colleges are located in institutions of higher learning, with perfect teachers, advanced disciplines and technologies, and high education quality guarantee; However, middle schools are mostly set up in vocational schools, technical schools, rural cooperative medical and health schools and other non-institutions of higher learning, and the teaching resources and hardware facilities may be relatively simple.

5. Different teachers: some professors with research background and rich teaching experience have been introduced to improve the teaching quality; Middle schools pay more attention to the cultivation of practical operation ability. Teachers generally come from the field of work practice and pay attention to imparting vocational skills and specific knowledge.