The invention discloses a deburring, washing and polishing process for an electrical contact. The deburring, washing and polishing process comprises four steps, including primary washing, polishing, secondary washing and after-treatment; the deburring, washing and polishing process disclosed by the invention is simple to operate and low in defective percentage; in a primary washing process, oil stain impurities on the surface of the electrical contact can be removed by adopting heat treatment and warm water and flowing water added with a detergent; subsequently the surface of the electrical contact is polished by means of coarse polishing, intermediate polishing and fine polishing, so that the glossiness of the polished surface of the electrical contact can be greatly increased; tiny scratches on the polished surface of the electrical contact can also be effectively eliminated; a good polishing effect is achieved; meanwhile environment-friendly polishing liquid is adopted, no pollutionis generated; a good surface treatment effect is achieved; secondary washing is implemented by adopting dry ice; dry ice particles are directly jetted to the surface of the electrical surface and areinstantly sublimated; the problem about secondary pollution is prevented; meanwhile a drying step is not needed; the work efficiency is high; washing and further polishing of the surface of the electrical contact can be implemented simultaneously; and the polishing effect is improved.