With the approval of the state, Northwest Institute of Textile Technology was renamed Xi 'an Institute of Engineering and Technology. In 2006, it was renamed Xi 'an University of Engineering with the approval of the Ministry of Education. Universities and colleges are a kind of schools that implement higher education, including comprehensive universities, specialized universities and colleges. It is an organization with unique functions, an institution of higher learning that inherits, studies, integrates and innovates advanced academic knowledge, and is interrelated with social, economic and political institutions. It is not only the product of the development of human culture to a certain stage, but also a unique culture gradually formed on the basis of long-term school-running practice through historical accumulation, self-efforts and external environmental influence.