Ag/Ni20 fiber electrical composites were prepared by severe plastic deformation including coating extrusion, bunched extrusion, and drawing. The arc erosion phenomena of this composite contact in direct current state were studied. The microstructure and element distribution in contact surface after arc erosion were analyzed by SEM and EDS. It can be concluded that in Ag/Ni20 fiber electrical composites, there are five arc erosion morphological characters, i.e. starchiness coagulum, coral-like structure, framework structure, pores/air holes, and cracks