The utility model discloses a homogeneous oil-removing device for the mud, solving the problem that the homogeneous effect of the existing oil-removing device provided with the large volume is poor and the oil-removing efficiency is low. The utility model is characterized in that the left and the right side wall of a tank body (1) whose bottom is provided with a drain outlet (5) and a breast hole (7) are respectively provided with the set (10) of deceleration machines and a liquid outlet (8). The upper, the middle and the lower part of the front wall of the tank body (1) is respectively provided with a water inlet pipe (2), a liquid inlet pipe (3) and a medicine feeding pipe (4), four to eight stirring paddles (13) are arranged on a shaft (14), and the inner upper part of the tank body (1) is provided with an oil collector (5). The utility model provided with the small volume has the advantages that the homogeneous effect of the mud is favorable, the oil-removing efficiency is high, and the separation of the oil from the mud is realized; besides, the pollution caused by the mud in the production of an oilfield is reduced, and the level of the comprehensive treatment of the waste of the oilfield is raised.