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50％。The powered-disc ridge till and no-till planter was designed to solve the problems of straw blocking, high energy consumption of strip rototilling and unstable operation on ridges in current no-tillage maize planting in ridge tillage areas of northeast China. The machine used the combined device of powered-disc and depth control wheel to cut the stubble, open seed furrow and stabilize in planting, and the key parameters of the device were analyzed and determined. The field experiment showed that the powered-disc ridge till and no-till planter was effective in anti-blocking and cutting stubble. The broken stubble depth was about 87mm and the separation space between seed and fertilizer was approximately 48mm, which met the agronomic requirements. Furthermore, the openers seeded and fertilized in the furrow opened by powered disc, thereby decreased soil disturbance and power consumption. The powered-disc ridge till and no-till planter reduced fuel consumption by 8.5% and soil disturbance by 50%, respectively compared to the strip-rototilling ridge till and no-till planter.