With the rise of Internet food delivery services, online ordering business is growing. New business model realized through online and offline interaction [1, 2]. Online takeout has the advantages of convenience and speed, On the basis of online ordering, online payment and other main functions, combined with a variety of preferential activities, the traditional catering industry's business model has been innovated, but also brought new business growth points, Therefore, in order to better meet the needs of customers at any time, the back end of the ordering system based on the We Chat service number platform built by Spring boot [3, 4, 5] and JPA is a Web APP running on the We Chat public number constructed by VUE.JS [6, 7, 8] .The system follows the MVC. development pattern. The front and rear ends are separated and connect to each other through REST [9, 10] interfaces. From the point of view of technology development, the overall design of the ordering system, to achieve user registration and login, menu view, ordering generation, intelligent ordering and other functions.