The present invention relates to a device for forming a pattern on a surface of a fruiting vegetable and, more particularly, to a device which can be mounted on an immature fruiting vegetable without a separate fixing device, changes the shape thereof as the fruiting vegetable grows, and is capable of engraving a predetermined pattern on a surface of the immature fruiting vegetable so as to be clearly identified. A device for forming a pattern on a surface of a fruiting vegetable according to an embodiment of the present invention comprises: a member made of plastic, of an annular shape without a cut portion, having an inner surface and an outer surface, an opening defined by the inner surface, and a pattern formed on the inner surface of the member, wherein the member includes a first folded portion and a second folded portion； the inner surface of the member includes a first opposing surface and a second opposing surface that face each other due to the first folding portion and the second folding portion； the first opposing surface and the second opposing surface can be mounted on the surface of the fruiting vegetable by pressing both surfaces of the immature fruiting vegetable arranged on the opening by elasticity formed by the first folded portion and the second folded portion； and the shape of the member changes so as to correspond to the surface shape of the fruiting vegetable as the fruiting vegetable grows.
