A shift range control device controls switching of a shift range by controlling a drive of a motor, and includes a signal acquisition unit and a drive control unit. The signal acquisition unit acquires the rotation angle signal from the encoder that outputs rotation angle signals of three or more phases with different phases. The drive control unit controls the drive of the motor so that a rotational position of the motor becomes the target rotational position according to the target shift range. When an abnormality of the rotation angle signal is detected during switching of the shift range, the drive control unit performs fixed phase energization that continues energization to the same energized phase, and stops rotation of the motor.