In this paper,experiments are designed to study the energy consumption and temperature rise of inverter motors.The study shows that in order to effectively deal with the no-load loss,the use of high-quality cold-rolled silicon steel sheet core,optimize the slot shape,reduce core loss,excitation loss,mechanical loss,the motor no-load loss has a good control effect,the overall operation of the motor is good,and reduces the incidence of temperature-rise faults.