Abstract: In order to ameliorate the big area natural degenerative prairies, to speed up the sustainable development of livestock husbandry, and to improve the ecosystem environment of prairies, a versatile no-tillage seeder of herbages was designed. In no destroy plant condition, this type of seeder can make degenerative prairies no-tillage and supplementary tillage, speed up and recover the output of grass in degenerative prairies. This article introduced the working principle and main part structure features of this kind of seeder. The experiment was also done. The results show that it can complete the series work of cutting open the sod, amputating grass root, ditch-opening and seeding at the same time. The quantity of sowing seeds can be adjusted from 7.5 kg/hm² to 90 kg/hm², the depth of ditch from 10 mm to 90 mm, which is suitable for mechanization improvement of much natural prairies.