The utility model relates to a 3,6-matrigon overflow-typed electrobath, which comprises a electrobath cathode that is electrically connected with the cathode of a power source, an electrobath anode that is electrically connected with the anode of the power source, an electrobath box body, an electrolyte inlet and an electrolyte discharging port, which are arranged on the electrobath box body, an electrolyte outlet, and a pumping hole and an observing port, which are arranged on the upper part of the electrobath box body, wherein, a liquid stream distributor is arranged inside the electrobath box body; the electrobath is free from dissepiment; the liquid stream distributor is vertically arranged on both inner sides of the electrobath box body; an anode plate and a cathode plate are arranged at the inner sides of the liquid stream distributor; both sides of the liquid stream distributor are respectively communicated with the electrolyte inlet and the electrolyte outlet. The electrobath has the advantages of high current efficiency, high space time yield, high product purity, low energy consumption, and the like; at the same time, the electrobath also has the advantages of wide application range, simple structure and convenient maintenance, and is particularly suitable for electrolyzing 3, 6-matrigon in the alkaline medium.