Abstract: A motor control method for an automatic washer having an electronically commutated motor (ECM) serving as a power source, the ECM being serially connected to a washing axle and a drying axle without decreasing a spinning rate of the ECM, includes the steps of judging, when a position of the ECM is sensed from a Hall sensor input, whether the automatic washer is set in a washing mode or in a drying mode, determining a spinning direction command signal if the automatic washer is set in the washing mode, calculating a driving logic at a specific moment angle applicable to the washing mode in the spinning direction command signal, calculating a speed command signal in the ECM and a voltage command signal at a real speed value, modulating a pulse width of the voltage command signal in the driving logic, and outputting the pulse width modulated voltage command value. The method enables the ECM to provide a low speed and high torque in a washing mode region and a high speed and low torque in a drying mode region.