Abstract: Most of the popular corn planters in China use pickup finger seed metering device and air suction seed metering device, depending on the land wheel transmission to drive the seed metering device seeding, which can improve the uniformity of seed spacing to a certain extent, but the seed seeding is still affected by the slip of the ground wheel. In order to solve the above problems, this paper designed the control system of electric drive maize high-speed operation intelligent seeder. STM32F103 chip was used as the core of the master controller. The system measured the speed of the machine and tool by the proximity switch installed by the ground wheel. Infrared photoelectric sensor was used for real-time seeding monitoring. The results of laboratory test and field experiment showed that the system had high precision of speed control, sowing count and missing sowing monitoring. When the plant spacing was set to 25 cm, the operation speed was 8 km/h, 10 km/h and 12 km/h, respectively. The average qualified indexes under the three operation speeds were 95.18%, 94.36% and 91.24% respectively. The variation coefficients were 15.36%, 16.83% and 18.24%, respectively.