The invention discloses a server case, which comprises a case body and a holder, wherein the case body is provided with a substrate and a plurality of curb walls extending upwards from the edge of the substrate; the holder is assembled on the substrate of the case body, and is provided with a top wall, a first side wall and a second side wall; the first side wall and the second side wall extend from the edge of the top wall to the direction of the substrate respectively; the first side wall is connected with one of the curb walls, and the second side wall is connected with the substrate; and the height of the first side wall is more than that of the second side wall, so that the substrate is protruded by the traction of the second side wall.