Abstract: This paper takes the monitoring and display system of precision planter as the research object, based on the main controller and sensor of planter, carries out data interaction in the way of can network bus communication, and designs a visual function module convenient for human-computer interaction to ensure the real-time collection and data transmission of operation parameters in the sowing process. The monitoring and display system of precision planter is based on the sensor and hardware circuit. The sensor is used to collect the operation parameters. After the analysis and calculation of the main controller, it is displayed in the visualization module, so that the operator can grasp the operation status information in real time, and improve the use efficiency and intelligent level of precision planter.