To provide a new strike zone presentation system for enabling a chief umpire to excellently judge whether a pitch is a strike or ball in a baseball game.

The strike zone presentation system includes a see-through head mount display provided with an imaging means, a target fixed object registration means, a height criterion registration means, an inside and outside corner criterion registration means, and a presentation control means. The imaging means images an outside world while the target fixed object registration means registers a home base included in the image of the outside world as a target fixed object. The height criterion registration means registers height data to be a criterion in the vertical direction of a strike zone in accordance with individual batters while the inside and outside corner criterion registration means registers inside and outside corner data to be a criterion in the horizontal direction of the strike zone. The presentation control means presents a reference image 600 which shows a strike zone following the height data corresponding to a batter in a batter's box and the inside and outside corner data in the state that the target fixed object coincides with the home base.

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