Abstract: In view of the fact that there is no special hole planter for snap beans in the process of sowing, which leads to the problems of low qualified rate of sowing, high rate of missed sowing and high rate of replanting, and in the process of hole planting, it is easy to see the phenomenon of "reinforcing" caused by the duck’s beak of the hole planter tearing and picking up the film, resulting in poor sowing quality, air leakage of the film and other problems.The structure and working principle of a kind of hole planter for soybean were determined, and the relevant technical parameters were determined.The single factor simulation test was carried out by using the EDEM software to determine the value range of the factors affecting the qualified rate of seed metering; Taking the speed of the hill planter, the height of the seed layer and the linear speed ratio of the brush wheel to the seed metering wheel as the test factors, and taking the qualified rate of the hill planter seed metering, the rate of missed seeding, and the rate of replanting as the test indicators, the quadratic regression orthogonal rotation combination test was conducted to optimize the parameters; The optimized results were tested on the bench to verify the reliability of the simulation results.The results showed that when the qualified rate of seed metering was 98.2%, the rate of missed seeding was 0.64%, and the rate of replanting was 0.94%, the combination of the parameters was that the speed of the hole planter was 34.7r/min, the linear speed ratio of the brush wheel to the seed metering wheel was 1.4, and the seed layer height was 180 mm.This study provides a reference for the study of the sowing performance of the snap bean hole seeder and the improvement of the operation quality of the snap bean seeder.