The utility model discloses an electrolytic cell for micro-current zinc plate displacement of sponge cadmium. The electrolytic cell comprises a T-shape cell body, wherein liquid inlet holes are formed in the narrow end of the cell body; liquid outlet holes are formed in the wide end of the cell body; negative plates and positive plates, which are parallel to one another, are arranged in the narrow segment of the cell body; the negative plates and the positive plates are arranged alternatively and are parallel to the flowing direction of electrolyte; the negative plates and the positive plates are electrically connected in parallel by a transverse conductive copper rod. The utility model further discloses electrolytic equipment, applying electrolytic cell, for micro-current zinc plate displacement of sponge cadmium. Through the adoption of micro-current zinc plate enhanced displacement, the consumption of zinc powder is greatly reduced. Meanwhile, the electrolytic cell adopts a T-shaped structure; owing to the abrupt change in volume, the electrolytic cell can well prompt liquid flow to wash away sponge cadmium floating on the surface of the electrolyte between the negative plates and the positive plates, avoids loss caused by short circuit and facilitates slag removal.