Abstract: In order to solve the problem of traditional precision seeding technology and reduce farming processess and labor consumption, a 2BMSJ-12 double-film mulch precision planter for cotton seeding was developed based on the agronomic technical requirement and the analysis of the advantage and disadvantage of seeding under and upon the mulching film. Field experimental results showed that the cotton seedling emerged 2-3 days earlier, the seedling emergence rate exceeded 94% and all the seedlings were strong in good trim by using this planter when compared with the traditional drilling style. More than 200 000 hm2 field practice of the 2BMSJ-12 planter showed that the cavities ratio of cotton seeding was less than 3%, the qualification rate of seeds into holes was over 85% and the minimum row spacing of the planter was 9 cm. Thus, it indicate that the planter can meet agronomic technical requirement of serried row planting of cotton in Xinjiang area, and also help to promote the whole-course mechanization of cotton industry.