The present application discloses a driving device for a power device, which includes a control circuitry configured to receive at least a system switching command and a feedback signal of a power device, and to generate a pull-up strength control signal or a pull-down strength control signal according to the received signals; and a pull-up array and/or a pull-down array, coupled between the control circuitry and the power device, and configured to provide a corresponding pull-up or pull-down strength for the power device according to the pull-up or pull-down strength control signal. The present application also discloses the corresponding electric appliance and power device driving method.