The present invention relates to a control method for motor-driven shears. The control method for the motor-driven shears of the present invention requires that both the power supply module and the control system used to drive the motor be active simultaneously for the shears to operate. The power supply module requires a switch be pressed to activate the power supply module and to provide the resultant power to the MCU. Further, upon releasing the switch, the MCU is be able to maintain the power supply module in a discharging state long enough to allow the control system controlling the motor to rotate the movable blade to an open position. Finally, when the movable blade is opened to a maximum position, the MCU may direct the motor to stop rotation and shut off the power supply module.
