A plant cultivation device includes a main frame having multiple floors. Each floor has a water container disposed thereon. The water container includes at least one middle bracket and two and brackets respectively connected to two opposite ends of the at least one middle bracket to form a shelf. A plate is disposed on a bottom of the shelf and a tarp is effused on the plate, wherein the tarp is light-proof and the outer edge of the tarp is folded to cover the at least one middle bracket and the two end bracket to form a trough. The trough includes a water outlet disposed in a bottom thereof and a water supplying path mounted on the shelf. The water supplying path has an inlet extending into the trough. A drain path is mounted onto the water outlet. Consequently, the water container is easily to be cleaned and has a small column for being easily transported.本發明係提供一種植栽裝置及其組合式容槽,該植栽裝置主要包括: 一架體,具有層架;組合式容槽,設置於架體層架上,各組合式容槽包括端部單元架體及中間單元架體組合而成的框架、置於該框架中的底板、鋪設於該底板上的遮光防水布料,該防水布料周邊區域沿著框架的中間段立向側框及端部立向側框向上曲折伸展以形成一盛置槽;盛置槽並設有水液排放部;一供水管路,組設定位於架體,所述供水管路具出水端伸置於組合式容槽的盛置槽中;一排放管路,與組合式容槽的水液排放部相連接;藉此以提供清理方便且倉儲運送體積小之組合式容槽。20‧‧‧組合式容槽21‧‧‧框架211‧‧‧端部單元架體212‧‧‧中間單元架體213‧‧‧組接邊214‧‧‧中間段立向側框215‧‧‧組接邊216‧‧‧端部立向側框217‧‧‧定位件22‧‧‧底板23‧‧‧防水布料231‧‧‧周邊區域24‧‧‧水液排放部40‧‧‧排放管路
