To improve a detection function of a plant growth state.SOLUTION: A plant cultivation system comprises: a lamination cultivation shelf 5 and a transport robot 6 for transporting a plurality of plants 2 to be cultivated and cultivating the same; a dimension detection sensor 9 and a weight detection sensor 10 in which a detection region is arranged at a midway position of a transport path for the plants 2 in the lamination cultivation shelf 5 and which detect the growth state for every individual plant 2 passing through the detection region. The lamination cultivation shelf 5 has a plurality of cultivation shelves 5a arranged side by side in a vertical direction, the transport robot 6 transports the plants 2 among the plurality of cultivation shelves 5a, the detection region of the dimension detection sensor 9 and weight detection sensor 10 is arranged on the transport robot 6 or at a midway position of the transport path of the transport robot 6.SELECTED DRAWING: Figure 1【課題】植物の生育状態の検出機能を向上する。【解決手段】栽培対象の複数の植物2を搬送移動させつつ栽培する積層栽培棚5及び搬送ロボット6と、積層栽培棚5における植物2の搬送経路の途中位置に検出領域が配置され、検出領域を通過する植物2の個体ごとに生育状態を検出する寸法検出センサ9及び重量検出センサ10と、を有し、積層栽培棚5は上下方向に並んで配置された複数の栽培棚5aを有し、搬送ロボット6は複数の栽培棚5aの間で植物2を搬送し、寸法検出センサ9及び重量検出センサ10の検出領域は、搬送ロボット6上又は搬送ロボット6の搬送経路の途中位置に配置されている。【選択図】図1