PURPOSE: To place an image at a proper position in front of the eyes and make the image easy to see by improving the optical system of the spectacle type video display device which is put on the head like a pair of glasses to see the image.

CONSTITUTION: This device is provided with a square main body part 11 having a curved surface which is gentle along the front surface of the head part and temple parts 12 on both the sides of the main body part 11; and the main body part 11 is open at face-side positions of both the eyes and oculars 13 are provided at the opening parts. Mirrors 14 are provided at top-surface side positions in the main body part in front of both the eyes respectively and the reflecting surfaces of the mirrors 14 are directed so that the line of sight are reflected by the mirrors 14 to right beside the center face side in the main body part. In the center of the main body part 11, a prism in a isosceles triangular prism shape is provided vertically having the base of the triangle on the face side, and the vertical angle of the isosceles triangular prism is equal to the angle at which the glances reflected by the mirrors 14 are transmitted through the isosceles surface of the prism 15, reflected by the opposite isosceles surface, and made incident on the base surface; and the video display surface of a small-sized video display part 16 is provided on the base surface of the triangle of the prism 15 while facing the prism 15.