According to the characteristics and functions of the control system of frame glue coater, a GUI model suitable for the man-machine interface of the system is proposed. Using the method of UML, the requirements analysis, interface structure design and sub function design of the model are carried out. According to the characteristics of UML, the man-machine interface use case model and dynamic interaction model are established. Through the model, the work requirements, work flow, the relationship between various types, and the interaction of classes and functions of the system are described in detail, which improves the efficiency of man-machine interface design and implementation of coater control system and increases the convenience of later maintenance. The man-machine interface of coater control system is realized by C + + object-oriented programming language, and the communication between man-machine interface and Beifu industrial control system is completed by ads communication protocol, so as to realize the communication and data acquisition between man-machine interface and hardware.