A solar plant cultivation system comprises a top roof, a plant cultivation unit located below the top roof and an illumination detector. The top roof is provided with a light entering space having a plurality of elongated shading plates. Each shading plate can rotate along its own long axis so as to open or close the light entering space, one surface of the shading plate is a solar panel which cooperates with the illumination detector to determine whether the illumination of the plant cultivation unit is proper or not, so as to control the opening and closing of the light entering space, thus adjusting the lighting time of the plant cultivation unit.一種太陽能植物栽培系統,包括一頂棚、一位於該頂棚下方的植栽單元以及一照度偵測器,該頂棚具有一進光空間,該進光空間設有複數長條狀遮光板,各該遮光板可沿自身之長軸旋轉而開啟或關閉該進光空間,該遮光板之一面為太陽能板,配合該照度偵測器偵測該植栽單元所受之光照度是否適當,據此調整該進光空間之開關,以控制植栽單元受自然光照之時間,藉以達到自動地調整栽培系統之植栽單元受到光照之時間長短之目的。20‧‧‧頂棚21‧‧‧固定支撐架22‧‧‧支架25‧‧‧遮光板27‧‧‧太陽能板28‧‧‧人工光源29‧‧‧儲電件30‧‧‧植栽單元31‧‧‧栽培件32‧‧‧集水槽33‧‧‧過濾器34‧‧‧進水閥35‧‧‧泵浦36‧‧‧補水件40‧‧‧馬達41‧‧‧連桿42‧‧‧帶動件50‧‧‧控制器61‧‧‧電量偵測器62‧‧‧照度偵測器63‧‧‧水量偵測器80‧‧‧植物
