Provided is a flexo printing plate which makes it possible to perform printing in which the discontinuity of density is not visually recognized by inhibiting the enlargement of halftone dots in the boundary between an image portion having a low halftone dot area ratio and a non-image portion. The flexo printing plate adopts a constitution in which, within the highlight halftone dot portion having a halftone dot area ratio of higher than 0% and equal to or lower than 10%, among the small dots constituting the highlight halftone dot portion, at least one small dot adjacent to the non-image portion that continues 10 mm or further in a direction separating from the edge of the highlight halftone dot portion has a height smaller than the average height of the small dots of the highlight halftone dot portion.

A method for manufacturing a rubber product includes printing a printing layer with a pattern or a color on a plate member; processing a rubber material in mixing, heating and pressing manners; molding the rubber material and the plate member together by heating and pressing to transfer the printing layer from the plate member onto the rubber material, so as to form the rubber product; demolding the rubber product; and detaching the plate member from the rubber product when demolding the rubber product. The pattern or the color is printed to at least one three-dimensional surface of the rubber product by transferring the printing layer from the plate member onto the rubber material.