To provide an intercom device which is for effectively utilizing a limited storage capacity, prevents the situation that a visit is not recognized from occurring, and is excellent in handleability.

An intercom master unit 3 includes a face detection part 18 for detecting the face of a person in video images, and a master unit control part 22 for determining the storage form of the video images to a storage medium 17 on the basis of detection by the face detection part 18. While all the video images are stored in the storage medium 17 as moving images when the face of a person is detected in the video images, a part of the video images is stored in the storage medium 17 as a still image when the face of a person is not detected in the video images.