1, Northwestern Polytechnical University is 2 1 1, 985, while Xi 'an International Studies University is only an undergraduate college.
2. Northwestern Polytechnical University is a multi-disciplinary, research-oriented and open university featuring the development of personnel training and scientific research in the fields of aviation, aerospace and navigation. It is a national "first-class university" construction university (Class A) and belongs to the Ministry of Industry and Information Technology. Xi International Studies University is a full-time general institution of higher learning with foreign language education as the main body, humanities and social science research as the feature, and multidisciplinary coordinated development.