The invention discloses a movable belt type quantitative sand transfer device. The movable belt type quantitative sand transfer device comprises a wheel type chassis (1), a batch box moving assembly (2), an obstacle crossing assembly (3), an obstacle crossing wheel assembly (4), a belt conveyor (5), a supporting assembly (6), a batch box leveling assembly (7) and an end cover batch box assembly (8). According to the movable belt type quantitative sand transfer device, the advantages that a wheel type device is high in speed, and a leg type device is high in obstacle crossing capacity are integrated in the moving device, the device can rapidly reach the work position, the needed slope is erected through the obstacle crossing assembly (3) and the supporting assembly (6), through the batch box leveling assembly (7), during cargo taking, the axis of a batch box is kept perpendicular to the bottom face, the sand with the needed size is taken through the end cover batch box assembly (8), through coordination exercise of the belt conveyor (5) and the end cover batch box assembly (8), the device can replace a worker to execute quantitative transfer task of sand type micro-particle cargos, work capacity is high, the efficiency is high, and the cost is low.