A kind of plant cultivating device includes: pedestal, footstock, layer frame, at least a cultivation bed and conveying mould group. Wherein, footstock is with respect to what pedestal. Layer frame includes support tube and an at least carrier, and support tube connects between what pedestal and footstock, and carrier is respectively along the radial direction combination what support tube of support tube and respectively on the different horizontal plane of position what. Cultivation bed is to carry at least one cultivation object and respectively position what carrier top. Conveying mould group can from top to bottom be sequentially provided culture solution to cultivation bed via support tube.一種植物栽培裝置,包含:底座、頂座、層架、至少一栽培槽及輸送模組。其中,頂座相對於底座。層架包含支撐管與至少一承載盤,支撐管連接於底座與頂座之間,且承載盤分別沿支撐管的徑向結合於支撐管而分別位於不同的水平面上。栽培槽用以承載至少一栽培物且分別位於承載盤上方。輸送模組可經由支撐管由上至下依序提供培養液至栽培槽。