A soybean seeder suitable for clayey soil was designed in response to current situation of high labor demand and unsatisfactory sowing effect in Jiaxing City, Zhejiang Province．Machine adopted a double-winged plow for trenching and a cover board for soil covering．Experiment results showed that designed soybean seeder performance indicators met soybean sowing needs in Jiaxing City, sowing quality was better and it could be used for sowing soybeans in clayey soil in Jiaxing City．