Abstract: Most small grain and coarse grain crops in Shanxi Province are planted in hilly areas, the road conditions for large and medium-sized agricultural machinery to enter the land are poor, and the degree of agricultural mechanization is very low. By improving the design of the ditcher of the planter, the sowing depth can be adjusted by changing the installation direction of the ditcher knife;By improving the design of the downforce regulating device of the parallel four-bar profiling mechanism, the profiling adaptability of the parallel four-bar mechanism is improved, so that the planter can not only adapt to the hard stubble sowing of conservation tillage, but also adapt to the soil sowing with better soil preparation after rotary tillage.