A plant cultivation device, capable of possessing ornamental value of the interior of a house and the inside of a building and promoting the growth of a plant, is provided. The plant cultivation device 1 comprises a cultivation tray 3 and an illumination device 7. The cultivation tray 3 collectively comprises a culture medium receiving portion 26 that is capable of receiving a plant-growing culture medium tank 9. The illumination device 7 comprises a plurality of light sources 50 utilized for irradiating light rays toward the cultivation tray 3 through a cultivation space S that is formed with at least one opened part. The light sources 50 are configured on a position where the light intensity value or light quantity value radiated on a first zone A1 of the cultivation tray 3 including the culture medium receiving portion 26 and the periphery of the culture medium receiving portion 26 is greater than that radiated on a second zone A2 outside of the first zone A1 of the cultivation tray 3.本發明提供一種可確保屋內、室內等中之觀賞性,並實現促進植物成長之植物栽培裝置。植物栽培裝置1包括:栽培盤3,其包含收容可栽種植物之培養基槽9之培養基收容部26;及照明裝置7,其包含經由至少一部分敞開之栽培空間S而朝向栽培盤3放射光之複數個光源50;且複數個光源50係配置於照射至栽培盤3上之包含培養基收容部26與培養基收容部26之周圍之第1區域A1的光之強度或光量之值大於照射至栽培盤3上之第1區域A1之外側之第2區域A2的光之強度或光量之值的位置。1‧‧‧植物栽培裝置3‧‧‧栽培盤(栽培部)5‧‧‧框體5a、5b‧‧‧開口部10‧‧‧貯存部12‧‧‧蓋部16‧‧‧側部20‧‧‧本體部20a‧‧‧正面24a‧‧‧突出部26‧‧‧培養基收容部40‧‧‧載置部40a‧‧‧載置面41‧‧‧盤固定部42、44‧‧‧側部42a‧‧‧內表面46‧‧‧頂板部46b‧‧‧上表面48‧‧‧散熱狹縫S‧‧‧栽培空間