The 2BMFJ series of precision seeder for no-tillage mulch straw in stubble field developed by Northeast Agricultural University integrated seed bed preparation, stubble prevention, precision seeding, deep fertilization, covering and compacting soil, spraying potions, covering straw evenly and other functions, the original stubble field with high quality and precision seeding operations was completed. It has become an important technical means to ensure the combination of intensive cultivation and conservation tillage. In order to solve the problem of large amount of straw return during the operation of the spring-tooth cleaning plant, it was of great significance to study a kind of prevent bring back stubble mechanism. Therefore, based on the existing stubble no-tillage mulch straw precision seeder spring-tooth cleaning device, the prevent bring back stubble linkage mechanism was added. By modeling and analyzing the lateral throwing residual of the linkage mechanism, the change rule of rear deviation angle in the direction of outer normal line of the pulley was determined. The minimum rotational speed of the drive pulley was obtained by theoretical analysis of the stubble conveying with spring-tooth. Based on the theoretical analysis of soil cutting length, the structural parameters between the spring-tooth were obtained. In order to obtain rules of the spring-tooth on the residual stubble, the structural parameters of the prevent bring back stubble linkage mechanism were determined. The experiment was carried out by using the method of L9(34) orthogonal test. The working speed, deflection of springtooth and rotational speed of drive pulley were selected. The rate of straw removal and the rate of straw return were taken as the evaluation indexes. The results showed that the working speed and the rotational speed of drive pulley had an extreme significant effect on the straw removal rate of seed bed (P<0.01). The effect of the angle on the straw return rate was significant (0.01