Abstract: In view of the non-mechanization problem in the process of white radish seed sowing under the condition of plastic film mulching planting in Guizhou mountainous area, a mechanical precision seeder driven by electric film was designed according to the farming requirement of white radish, the seeder is mainly used for self-propelled radish seeding on plastic film after Ridge forming. The main structure parameters of the whole machine and its key parts are analyzed and determined. The static test and field seeding test were used to test the seeding performance of the seeding machine. The results showed that the void index was 1.4%, the qualified index of seeding was 91.5%, the missed index was 5.4%, the reseeding index was 7.0%, the qualified index of film-mulched seeding depth was 90.5%, the results showed that all the performance indexes were in accordance with the national standard for quality evaluation of seeder and the operation quality met the requirements of white radish cultivation.