An operation panel display device for a medical X-ray photography apparatus (10; 10B), the operation panel display device comprising: a display panel including a display region including a photography mode selection region configured to display a plurality of photography mode selection images corresponding to a plurality of X-ray photography modes, an illustration display region configured to display an illustration image corresponding to said plurality of X-ray photography modes; an operation receiver configured to receive an operation regarding an image displayed on said display panel , wherein when a selection operation for one of said photography mode selection images is received, a selected photography mode selection image is displayed in a visually distinguishable manner in said photography mode selection region according to said selection operation, and said illustration image corresponding to said selection operation is displayed in said illustration display region ; said display region includes a first photography condition setting region , and said first photography condition setting region is a region configured to display a plurality of first photography condition setting images for setting a first photography condition according to said selection operation with respect to one of said plurality of photography mode selection images, and wherein through a further selection operation of one of said plurality of first photography condition setting images displayed in said first photography condition setting region, a plurality of photography condition setting images, corresponding to the further selection, are displayed in said illustration display region , instead of said illustration image . a display panel including a display region including a photography mode selection region configured to display a plurality of photography mode selection images corresponding to a plurality of X-ray photography modes, an illustration display region configured to display an illustration image corresponding to said plurality of X-ray photography modes; a photography mode selection region configured to display a plurality of photography mode selection images corresponding to a plurality of X-ray photography modes, an illustration display region configured to display an illustration image corresponding to said plurality of X-ray photography modes; an operation receiver configured to receive an operation regarding an image displayed on said display panel , wherein when a selection operation for one of said photography mode selection images is received, a selected photography mode selection image is displayed in a visually distinguishable manner in said photography mode selection region according to said selection operation, and said illustration image corresponding to said selection operation is displayed in said illustration display region ; said display region includes a first photography condition setting region , and said first photography condition setting region is a region configured to display a plurality of first photography condition setting images for setting a first photography condition according to said selection operation with respect to one of said plurality of photography mode selection images, and wherein through a further selection operation of one of said plurality of first photography condition setting images displayed in said first photography condition setting region, a plurality of photography condition setting images, corresponding to the further selection, are displayed in said illustration display region , instead of said illustration image . <EOS>