Black residual anode from aluminum electrolysis can enter into a self-grinding system,electrolytic cell,which can cause decreasing of anode scrap recovery,increasing of carbon content in the electrolyte,increasing of refloating carbon residues strength,increasing of carbon residues handling capacity,an automatic identification multi-stage sorting system for block anode residues was designed,it can conduct sorting of block anode residues in automatic conveying by using of multi-faceted,size,shape vision detection,it can replace manual operation,about 5 760 t anode residues can be picked and chose,the creating benefits exceed 10.95 million yuan per year.