Abstract: As an information display component on the tractor, the combination instrument plays an important role in reading the vehicle parameters for the user when the tractor is operating.This paper introduces the design scheme of the tractor combination instrument based on CAN bus.By summarizing the functions of the existing models in the market and summarizing and sorting out the configuration requirements of the future National Ⅳ and intelligent tractors, the design is explained in terms of the layout of the instrument interface, the selection of indicators and displays, and the configuration of functions.Developed a generalized instrument cluster suitable for various models.Ultimately, it saves development costs for OEMs and improves competitiveness.