To provide a motor control method using an easy method for avoiding complicated wiring due to an increase of signal lines when requiring information data from a plurality of motors located in remote places.

The motor control method for a ventilating device in which inputs and outputs between the motor of the ventilating device and a temperature detecting means for detecting a temperature around the motor are electrically connected in parallel, comprises inputting in time series to the inputs and the outputs a voltage array with motor driving voltage and temperature detecting means voltage arranged, and turning the motor into an ON-state when the temperature is higher than a preset temperature and turning the motor into an OFF-state when the temperature is not higher than the preset temperature.