The servomotor control device includes: an inverter circuit that drives a servomotor; a PWM circuit that outputs a PWM signal to the inverter circuit; a cutoff circuit that receives a safety signal and the PWM signal, outputs the PWM signal to the inverter circuit when the safely signal is turned on, and does not output the PWM signal when the safely signal is turned off; and a servomotor control circuit that outputs the safety signal to the cutoff circuit and receives a monitor signal output from the cutoff circuit, the servomotor control circuit turning off, within one cycle time of the PWM signal, the safety signal input to the cutoff circuit where the PWM signal is turned off during servomotor drive and detecting an abnormality when an off state is not detected using the monitor signal.