According to the Higher Education Law, colleges and universities should have strong teaching and scientific research strength, high teaching and scientific research level and corresponding scale, and be able to implement undergraduate and above education. The difference between the two is that universities must also have more than three national disciplines as their main disciplines. Full-time students plan to have more than 5000 students. Generally, the college has a national discipline as the main discipline, and the full-time students are over 3,000. It can be seen that although both "universities" and "colleges" belong to institutions of higher learning, they must have certain teaching and scientific research capabilities to implement undergraduate education, and they have the same academic level and training specifications, but the requirements for subject setting are still different. Generally speaking, "university" is more comprehensive, while "college" is often more professional, but this does not mean that "university" is necessarily superior to "college". In some professional disciplines, the teaching ability and scientific research level of some "colleges" are much higher than those of some universities.
Universities or colleges are divided into departments, such as architectural engineering department and aircraft manufacturing engineering department. Each department is divided into several majors, such as aircraft manufacturing engineering, and some schools have aircraft manufacturing and aircraft design majors. Generally, when a department has a large scale and a large number of teachers, it is set as a college. For example, the aircraft manufacturing engineering college of a university or the aircraft manufacturing engineering college of a college. The college mentioned here is different from the college mentioned by the questioner. To put it bluntly, this college is actually a department of its school, but this department is now called college.