Abstract: Rotary tiller seeder is a compound operation machine that can complete multiple tasks such as rotary tiller, trenching, sowing, soil covering, and compaction at once．Composition and structure of rotary tiller seeders was introduced, current development status of rotary tiller seeders was described, three models of rotary tiller seeders and their parameters were listed, their shortcomings were pointed out, and development trend of rotary tiller seeders was prospected．