[Objective] In order to provide reliable theoretical foundation for the determination of reasonable working parameters for the machine of paving straw-checker sand barriers, the feasibility of inserting straws with Discrete Element Method (DEM) was investigated, and the relationship between the resistance of inserting straw and the speed of the disk blade was analyzed qualitatively.[Methods] A numerical model was built based on DEM for the complex system of sand particles, straws and disk blade, and the dynamic process of disk blade inserting straw was simulated with DEM. Besides, the influence factors on inserting resistance were discussed, such as inserting and moving velocities of disk and distance between straws.[Results] The inserting resistance of disk blade increases with the decrease of the distance between straws and the increase of horizontally moving velocity and vertical inserting velocity.[Conclusion] DEM can be applied to numerically study of straw-checkerboard paving on the surface of sand.