A kind of thin-layer substance with diversion effect includes a portion, base, plural rib wall and plural groove. Portion, base has a surface. Rib wall is connect with portion, base and opposite what surface elevation, each rib wall have a rim portion. Groove is recessed to form the rim portion of what rib wall along the extending direction of rib wall respectively. The thin-layer substance more can produce the effect of water conservancy diversion through groove other than rib wall can destroy the surface tension of fluid.一種具有導流效果的薄層物，包含一基層部、複數肋牆與複數溝槽。基層部具有一表面。肋牆與基層部連接並且相對於表面隆起，每一肋牆具有一頂緣部。溝槽分別沿肋牆的延伸方向凹陷形成於肋牆的頂緣部。該薄層物除了肋牆可破壞流體的表面張力以外，透過溝槽更可產生導流的效果。
