Defects such as edge,fuzzing and tearing could be produced on aramid fiber composite(AFRP)during milling,which seriously affect the assembly and use of materials.In order to solve the above problems,orthogonal experiments were carried out on the tool structure,spindle speed,and feed speed.The effects of milling parameters and tool structure on the milling surface quality of aramid fiber composites were studied from the aspects of milling force,surface roughness and fracture morphology of fibers.The experimental results show that the spindle speed and feed speed have significant effects on the surface roughness and milling force.The surface roughness of burr tool is 28% lower than that of conventional four-edge end milling tools, and the width of rough edge is smaller, the surface quality of milling is better,and it is more suitable for AFRP milling.