The invention discloses a local-stage aqueous-phase inner circulation device with a box-type extraction tank, belonging to the technical field of rare-earth extraction. The local-stage aqueous-phase inner circulation device is technically characterized by comprising an extraction tank body, wherein a clarifying chamber, a mixing chamber and a submerging chamber are arranged in the extraction tank body; the clarifying chamber is provided with an organic-phase cofferdam and an aqueous-phase cofferdam for an organic phase and an aqueous phase to enter the submerging chamber and the mixing chamber in a flowing manner; an aqueous-phase chamber is arranged in the aqueous-phase cofferdam; the interior of the aqueous-phase chamber is divided into an interstage aqueous-phase chamber and an inner circulation aqueous-phase chamber; the interstage aqueous-phase chamber is equipped with a liquid level adjustment tube; the inner circulation aqueous-phase chamber is equipped with an inner circulation adjustment tube; the aqueous phase in the clarifying chamber is ascended to the liquid level adjustment tube and the inner circulation adjustment tube via the aqueous-phase cofferdam, and then enters the interstage aqueous-phase chamber and the inner circulation aqueous-phase chamber respectively; the aqueous phase the interstage aqueous-phase chamber flows in the submerging chamber of the upper stage via a nick on the stage plate of the extraction tank; and the aqueous phase in the inner circulation aqueous-phase chamber enters the submerging chamber of the local stage via a communication tube paved on the bottom plate of the extraction tank. The provided local-stage aqueous-phase inner circulation device with the box-type extraction tank is simple and convenient in structure, and capable of adjusting, measuring and realizing stable and accurate control on the inner circulation amount of the aqueous phase, and can be used for rare-earth extraction separation.