Abstract: With the rapid development of orchard green manure planting, the problems such as low efficiency and poor turning over effect are becoming more and more obvious. To solve this problem, a soil covering device and a prototype of orchard green manure crushing and rotating tillage were designed to improve the effect of green manure returning to the field, which could realize the stalk falls first, the soil falls later, the stalk falls below, the soil is above. The prototype is mainly composed of suspension device, crushing device, rotary tilling device, soil covering device and other parts. The finite element analysis of the key components of the prototype shows that the material selection is reasonable and meets the application requirements.The field test of the prototype showed that when the tractor’s forward speed was 1.2 m/s, the rotation speed of the grinding swing cutter was 800 r/min, and the rotary tillage depth was 100 mm, the average qualified rate of green manure crop’s grinding length was 90.1%, the average uneven rate of scattering was 7.98%, and the average coverage rate was 93.68%, which met the design requirements.And the energy consumption is relatively low, meet the needs of orchard green fertilizer utilization.