The invention relates to a hydroponics pipe structure with adjustable planting height, which is provided with a pipe body and a flow passage through the pipe body, and a through hole is arranged at the top edge of the pipe body to penetrate the flow passage； a lifting unit is arranged in the through hole of the pipe body, and the lifting unit can rise and fall arbitrarily in the through hole, and the lifting unit is provided with a planting space and the lifting unit is provided with a planting space. One less hole is penetrated to the planting space.Thus, the height of the lifting unit can be adjusted arbitrarily to match the height of the plant.Moreover, the overall structure is simple, the lifting adjustment is easy, and the use convenience is excellent.本創作係關於一種可調整栽種高度之水耕管構造，係設有一管體，內部貫通設有一流道，該管體之頂緣開設有一透孔貫穿至該流道；一昇降單元係設入於該管體之該透孔內，該昇降單元係可於該透孔內任意昇降，該昇降單元係設有一栽種空間，又該昇降單元設有至少一穿孔貫穿至該栽種空間。藉以可供配合植物不同的生長高度使用，而予以任意調整該昇降單元之高度，使其配合植物之高度。而且整體之構造簡單，昇降調整容易，具有極佳的使用便利性。
