<p>The nano cutting process of metallic glass Zr₅₂Cu₂₀Ti₁₆Ni₁₂ at room temperature was studied using molecular dynamics simulation method. Under the condition of adding suppression tools and changing the corner radius of the suppression tools, the microstructure, cutting force, shear zone strain morphology, and shear zone temperature changes of metallic glass were analysed. The simulation results indicate that the suppression tool’s fillet radius has a certain impact on the ordered structure of the short to medium range in the cutting area of metallic glass. The suppression of tool fillet radius has little effect on cutting force and temperature in the metal glass cutting area. The cutting force increases significantly with the increase of cutting depth. The suppression tool fillet radius has a significant impact on the shape of strain deformation in the shear zone of metallic glass materials, and as the fillet radius increases, the shear stress changes significantly. Using molecular dynamics simulation method, the effect of shear band suppression tool on the shear zone of metallic glass was studied by changing the cutting depth. The increase of cutting depth had a significant impact on the shear strain, cutting force, Voronoi polyhedron, and atomic temperature in the shear zone of metallic glass. The greater the cutting depth, the more significant the suppression effect of the suppression tool on the shear band.</p>