A monitoring device that outputs a movement or status of a person to a control device that controls a device by using the movement or status of the person, the monitoring device comprising: face direction detection means for detecting a face direction of the person; gaze direction detection means for detecting a gaze direction of the person; the monitoring device being characterized by further comprising: registration means for registering a target object (24b, 25b, 130, 131) in a determination target list; and determination means for determining a movement or status of the person on the basis of a relationship between the target object registered in the determination target list and the face direction or gaze direction of the person, and outputting a result of the determination to the control device, wherein in the determination target list, at least a period for executing the determination, the control device to which the result of the determination is output, and a condition for deleting the target object from the determination target list are registered for each target object, and the determination means determines the movement or status of the person during the period for executing the determination registered in the determination target list. face direction detection means for detecting a face direction of the person; gaze direction detection means for detecting a gaze direction of the person; the monitoring device being characterized by further comprising: registration means for registering a target object (24b, 25b, 130, 131) in a determination target list; and determination means for determining a movement or status of the person on the basis of a relationship between the target object registered in the determination target list and the face direction or gaze direction of the person, and outputting a result of the determination to the control device, wherein in the determination target list, at least a period for executing the determination, the control device to which the result of the determination is output, and a condition for deleting the target object from the determination target list are registered for each target object, and the determination means determines the movement or status of the person during the period for executing the determination registered in the determination target list. registration means for registering a target object (24b, 25b, 130, 131) in a determination target list; and determination means for determining a movement or status of the person on the basis of a relationship between the target object registered in the determination target list and the face direction or gaze direction of the person, and outputting a result of the determination to the control device, wherein in the determination target list, at least a period for executing the determination, the control device to which the result of the determination is output, and a condition for deleting the target object from the determination target list are registered for each target object, and the determination means determines the movement or status of the person during the period for executing the determination registered in the determination target list.