The smart campus service platform is a new business that provides daily purchasing, take-out, document delivery and other services for school students. With the increasing division of labor in society, students need more and more time to focus on learning and personal development. The smart campus service platform solves the needs of students in terms of insufficient staff and insufficient time, and has become an important choice for more and more college students in their daily life and study. This design takes WeChat small program as the realization platform, designs and implements a campus WeChat small program which is located in the campus teachers and students. The cloud development function of WeChat applet is used to realize the storage of database and real-time update of data, and provides users with a series of functions such as user login, order release, order acceptance, order completion, etc. Users can easily and safely complete the interaction with campus services. At the same time, part-time opportunities are provided, and users can receive orders and tasks and receive corresponding rewards after completion. Through the implementation and application of small programs, it can effectively solve the various needs of teachers and students on campus, improve the efficiency and convenience of campus services, and help college students to innovate and start businesses and cultivate more pragmatic practical ability.