The utility model provides a modular hydroponic tubular construction, this hydroponic pipe be a rectangular cavity physique, possesses a first end, second end, a first rampart, possesses the first infusion space of running through the intercommunication between this first end and second end and first rampart, sets up an at least cultivation hole in first rampart again, and this first port directly slightly is greater than second port footpath again, possesses at least one first knot outside the first end inner wall and personally experiences sth. Part of the body, and first the end possesses at least one first constant head tank in radial periphery, this second end outside utensil no. 1 can with the first catching groove of aforementioned first knot body lock and can with a first convex body of first constant head tank joint, should first rampart inner wall correspond and set up suitable high breakwater below cultivating the hole, again the utility model discloses can close with the hydroponic nest of tubes including bent pipe, so the utility model discloses can provide better combination convenience, variability and space usability.本創作係一種組合式水耕管結構,該水耕管為一長條中空形體,具一第一端、一第二端、一環壁,該第一端與第二端及環壁間具貫穿連通之輸液空間,又於環壁設置至少一培植孔,又該第一端口徑略大於第二端口徑,第一端內壁外側具至少一扣體,第一端於徑向周緣具至少一定位槽;該第二端外側具一可與前述扣體扣合之扣槽及一可與定位槽接合之凸體,該環壁內壁對應培植孔下方設置適當高度擋水板,又本創作可包括彎折管與水耕管組合;藉此本創作可提供更佳組合便利性、變化性及空間利用性。1‧‧‧水耕管11‧‧‧第一端111‧‧‧扣體112‧‧‧定位槽12‧‧‧第二端121‧‧‧扣槽122‧‧‧凸體123‧‧‧環槽124‧‧‧環圈13‧‧‧環壁131‧‧‧擋水板14‧‧‧輸液空間15‧‧‧培植孔