Abstract: In order to solve the problems of high furrow resistance and poor lateral stability of the arcing furrow opener in the deep fertilizing operation of no-tillage seeding side in northeast China, a kind of involute fertilizing furrow opener was designed by analyzing the track of soil particles under the action of fertilizing furrow opener. The two-factor and five-level center composite discrete element simulation was carried out with the soil entry angle and the soil entry gap angle of the involute furrow opener as the test factors, the advance resistance and the soil disturbance area as the test indexes, and the optimal structural parameters were obtained: soil entry angle was 25°, soil entry gap angle was 13°, curvature radius of the involute base circle was 169 mm. The results of field comparative tests showed that the advance resistance, stability coefficient of furrow depth and qualified rate of furrow straightening were217.1 N, 91.31% and 90.67%, respectively. Compared with the arc type furrow opener, the advance resistance was reduced by 15.56% and the qualified rate of furrow straightening was increased by 8%.In the process of operation, the whole machine had no yaw, which met the agronomic requirements of side deep fertilization for no-tillage seeding.