PURPOSE: To provide the slide shelf device for showcase that the thickness of a shelf is thin and a merchandise display effect is excellent.

CONSTITUTION: A slide shelf device T for showcase is provided with a strut 31 provided inside the showcase, bracket 18 fitted to this strut, shelf board 41 and slide rail 71. Then, a rising part 43 is formed on both sides of the shelf board, a fitting member 61 is fixed to the rising part on the shelf board, and this fitting member is provided with a screw hole 62 at a position lower than the lower surface of the shelf board. Besides, a fixed side member 74 of the slide rail is fixed to the bracket, on the other hand, its movable side member 72 is arranged on the shelf board so as to be overlapped with the rising part, and it is screwed with the screw hole of the fitting member.