A novel method for flow rate control in a batch feeding system was proposed through transforma-tion of the conventional flow rate control loop. The proposed method does not need a flow rate measuring device, and directly utilizes the weight measurement in the weighing tank. Performance of the proposed control method was analyzed in the viewpoints of set point tracking as well as sensitivity to measurement noise, and was compared with those of other conceivable control methods which directly use the weight measurement. As a consequence, the proposed method was analyzed to be superior to the other flow rate control methods, which was again confirmed through experiments.