An attention calling device is configured to call attention of a driver of a vehicle with a drive mode switchable among manual driving, drive assist, and driver-centered automated driving. The attention calling device includes: a drive mode recognition unit configured to recognize the drive mode being executed； a driver state recognition unit configured to recognize a driver state based on a captured image from a driver monitor camera provided in the vehicle； a determination unit configured to determine based on the driver state whether it is necessary to call the attention； and a control unit configured to control a stimulus application device of the vehicle so as to apply a stimulus at an intensity that matches the drive mode being executed to the driver to direct the attention of the driver to driving of the vehicle when the determination unit determines that it is necessary to call the attention.
