The invention discloses method and equipment for cleaning an oxide skin on the outer surface of a copper pipe, wherein the method comprises the step of: continuously passing through a pipe blank of the copper pipe through a rough brushing device, a medium brushing device and a fine brushing device which are arranged coaxially for respectively sequentially carrying out primary brushing, medium brushing and fine brushing on the outer surface of the pipe blank of the copper pipe to realize primary brushing, medium brushing and fine brushing on the surface of the pipe blank, and removing the oxide skin. The equipment mainly comprises a stand, and the rough brushing device, the medium brushing device and the fine brushing device which are arranged on the stand at intervals. Copper powder wastegenerated in the method is greatly reduced, and the predicted yield can reach 99.5 percent; and the equipment is convenient for use and has good cleaning effect on the oxide skin on the surface of the pipe blank.