With the advent of the information age,the reform of informatization in higher education has become an inevitable trend. Tosolve the problems of inaccurate results,low efficiency,and inconvenient operation in the traditional classification and grouping system ofmajors in universities,we design and develop the classification system of colleges and universities with the separation of front and backends under the B / S architecture,integrating the mobile terminal,PC terminal and server terminal. The system uses Vue framework as thefront-end technology,SpringBoot and MyBatisPlus framework as the back-end technology,and MySQL database for data storage. Keytechnologies such as login verification,front-end and back-end separation,information encryption,and data verification are applied toensure the security and stability of the system. In the classification process,two core algorithms,GPA priority and volunteer priority,aredesigned,and multiple classification algorithms such as random grouping and " Z " - shaped line grouping are provided for flexibleadjustment according to different school needs. System testing is based on the data of the 2021 undergraduate classification and groupingof majors in the School of Electronic Information and Artificial Intelligence of Shaanxi University of Science and Technology. Theapplication results show that this system is convenient and practical for human-computer interaction,can quickly obtain accurate results,and significantly improves the efficiency of classification and grouping,effectively solving the problems in the traditional classificationand grouping system of majors in universities,and providing strong support for the informationization reform of higher education.