To provide a head mount type display which is excellently balanced when mounted and prevent an HMD(head mount type display) from moving even if an observer moves his or her head in the mounting state to maintain a comfortable wearing feeling.

This display is provided with a front head part frame 11 which supports two video display means 12 and covers the forehead part and head top part of the observer, a left rear head part frame 13 which is coupled with the front head part frame 1 by a coupling means 18 and supports one signal processing means 15 and one voice reproducing means and covers the left rear head part of the observer, and a right rear head part frame 14 which is coupled movably with the forehead frame 13 by a coupling means 18 and supports the other signal processing means 15 and the other voice reproducing means and covers the right rear head part of the observer.