The present invention relates to a three-dimensional planting light guiding device, which is mainly provided with a light guiding film at the bottom end of the light transmitting plate to form a light guiding plate, and the light guiding film is arranged on the substrate and has a number of isosceles. The light guiding structure of the triangle, and the angle of the apex angle of the light guiding structure is 30 degrees to 55 degrees and is in contact with the light transmitting plate, so that the apex angle of the light transmitting plate together with the light guiding structure faces the sun illuminating surface, and the light guiding structure is set at the same time Parallel to the south and within 20 degrees of the parallel with the south； thereby, through the arrangement of the light guide plate, the sunlight can be concentrated through the guide of the light guide plate and mostly concentrated in the downward direct direction, so that the greenhouse is The crops planted in the lower layer of the planting rack can also receive sufficient sunlight to not only make the crops grow better, obtain better yields, and do not need to use artificial light sources to supplement the light, which can reduce the cost of use and reduce crops. Planting costs, and more practical performance characteristics in its overall implementation.本創作係有關於一種立體植栽導光裝置，其主要係於透光板底端結合固設有導光膜，以形成一導光板，導光膜係於基材上排列設有數呈等腰三角形之導光結構，且導光結構之頂角的角度為３０度～５５度並與透光板相接觸令透光板連同導光結構之頂角朝向陽光照射面，同時令導光結構設置係平行於南方且與南方之平行偏差在２０度以內；藉此，經由該導光板的設置，使得陽光能透過該導光板的導引而大部分集中於向下直向進行照射，讓溫室內之植栽架下層所栽種的作物同樣能獲得充足的陽光照射，不僅能讓作物長勢更佳、獲得更佳的產量，且不需另行利用人工光源補充光照，能減少使用成本的支出，降低作物栽種成本，而在其整體施行使用上更增實用功效特性者。
