In response to the problems of high tillage resistance, high energy consumption and poor tillage performance during highspeed operation of the plow in China, this paper investigates the structural parameters of the highspeed plow body surface on tillage resistance. First, the formation process of highspeed plow body surface based on the horizontal straight element line method is analyzed, and the structural parameters that have a great influence on the operational performance of high-speed plow body surface are derived. Then, based on the discrete element method, a dual soil layer structure containing a tillage layer and a plow base layer is established, and the soil properties and the interaction between the plow surface and the soil are characterized by suitable contact relations and contact parameters, and then a highspeed plow surfacesoil interaction model is established. The rationality of the highspeed plow body surfacesoil interaction model is demonstrated through soil flume tests and simulations of plowing operations. Finally, the influence of structural parameters such as share edge angle θ, guide curve opening l, plowshare mounting angle ε and height deviation amount ΔH on tillage resistance are studied respectively. The results show that the tillage resistance increases at a faster rate as the angle of the share blade increase; as the opening of the guide curve increases, the tillage resistance decreases gradually; as the ploughshare mounting angle increases, the tillage resistance fluctuates within a small range; the tillage resistance increases slowly as the height deviation increases. The results of this paper can provide a significant reference for the structural optimization design of highspeed plow surfaces.