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In order to further improve the quality of hole metering,，aiming at hilling and blocking problems of touching parts soil sowing in the process, combined with the requirements of precision seeding technology and the use of four bar kinematic principle, a kind of dry type rotary pricking hole seeding method was put forward, its variety can be applied to different working environments with diverse mode. Selecting the core motion parameters by establishing the mathematical model and the structure of tie points VB visual programming platform and the design of key components of the concave wheel and the return spring was optimized. The principal axis speed and the spring wire diameter were selected as experiment factors, with qualified index and coefficient of variation of test indexes as two orthogonal revolving combination test, the data processing was done by using Design-Expert 10.0.3 software and selecting the optimal working parameters. Through field verification test, under the condition that the spindle speed was 27r/min and the line diameter of the spring was 1.5mm, the operation qualification index of the seeder was 92.1%, the variation coefficient was 2.5%, and the blockage rate was 0. The results showed that the mechanism can meet the requirements of operation technology of precision seeding at the same time, and further improve the reliability and uniformity of soil particle spacing. The optimization of pricking hole seeder for dry rotary provided a theoretical basis and technical reference for improvement.