Undergraduate enrollment of Northwestern Polytechnical University is under the unified leadership of the Ministry of Education. According to the principle that "the school is responsible for enrollment supervision [refers to the provincial (autonomous region, city) level education administrative departments or enrollment examination institutions]", the inter-provincial (autonomous region, city) enrollment work of the school is carried out under the organization of the provincial (autonomous region, city) level education administrative departments or enrollment examination institutions.

Northwestern Polytechnical University enrolls students for the whole country. According to the actual situation of school personnel training and school-running conditions, the enrollment plans of provinces (autonomous regions and municipalities) are determined by comprehensively considering the number of candidates in each province (autonomous region and municipality), coordinated regional development and key support policies, fair enrollment opportunities in urban and rural areas, and planned arrangements over the years. After being approved by the Ministry of Education, it will be announced to the public by the provincial admissions departments.

The school takes no more than the total enrollment plan 1% as the reserved plan, which is mainly used for the quality control of students and the imbalance of students in online entrance examinations around the country.

Northwestern Polytechnical University enrolls students according to the categories of science and engineering, literature and history, and art, and the provinces (cities) that implement the comprehensive reform of the college entrance examination enroll candidates according to the requirements of the elective subjects set by the majors (professional groups).