Plant cultivation overhead device and method for cultivating plants by using same

The invention discloses a plant cultivation overhead device. The plant cultivation overhead device comprises connecting columns, end frames and a plurality of middle frames, wherein each end frame isa closed rectangular frame, each middle frame is an open rectangular frame, and the end frames are detachably connected with the top ends of the middle frames through the connecting columns. Accordingto the plant cultivation overhead device, traditional single middle-frame cultivation is changed into three cultivation methods, a new three-dimensional cultivation mode is formed, light, heat and space are fully utilized, three times of nutrient volume and two times of biomass are increased in the same area of platform elevated cultivation, a traditional method that a fixed frame body and a substrate are integrated is replaced, and heavy manual labor for replacing the substrate of plants every year is reduced. 本发明公开一种植物栽培高架装置，包括：连接柱，端架，若干个中部架；其中，所述端架为封闭式矩形框架；所述中部架为开口式矩形框架；所述端架与所述中部架顶端通过连接柱可拆卸连接。本发明将传统单一的中架栽培，改变为三种栽培方