Self-circulation electrolytic electrodeposition tank

The invention provides a self-circulation electrolytic electrodeposition tank. The tank comprises an electrolytic electrodeposition tank body, wherein an electrolyte self-circulation device is arranged on the outer side of the electrolytic electrodeposition tank body, the electrolyte self-circulation device comprises a circulation tank and a first liquid pump matching the circulation tank, the output end of the first liquid pump communicates with a liquid inlet device in the electrolytic electrodeposition tank body through a first liquid inlet pipe, a liquid outlet in the upper end of the electrolytic electrodeposition tank body communicates with the circulation tank through a liquid return pipe, and an external liquid supply system communicates with a liquid supplementing pipe on the circulation tank through a pipeline. According to the tank, self-circulation of electrolyte in the single electrolytic electrodeposition tank can be achieved, requirements of large-flow electrolytic electrodeposition tanks such