The invention relates to the technical field of electrolytic copper foil production equipment, in particular to a sealing ring dynamic cleaning device for electrolytic copper foil production. The sealing ring dynamic cleaning device for electrolytic copper foil production comprises a guide wheel assembly, a cleaning device and a workbench, wherein a plurality of guide sealing rings are arranged onthe guide wheel assembly; the two sides of the workbench are each provided with a cleaning water tank; the two sides of the workbench are provided with pressing devices for pressing and attaching thesealing rings on a cathode roller; the two sides of the workbench are further provided with driving assemblies for driving the pressing devices to rotate; the guide wheel assembly is arranged at a side portion of each pressing device; a leading-in wheel is arranged on one side above each cleaning water tank; a leading-out wheel is arranged on the other side of each cleaning water tank; the cleaning device comprises cleaning components and horizontal moving components, wherein the horizontal moving component is arranged on the side wall of each cleaning water tank; an output end of each horizontal moving component is vertically provided with a mounting rod; the cleaning component is mounted on each mounting rod; and an output end of each cleaning component extends into each cleaning watertank. According to the sealing ring dynamic cleaning device, the sealing rings are cleaned efficiently.