The present invention provides an indoor device capable of effectively irradiating cultivated plants with natural light or artificial light. The indoor device (1) comprises: a cultivation tray (3) for cultivating plants a lighting device (5) for irradiating the cultivation tray (3) with light and a frame body (7) for supporting the lighting device. The frame body (7) has a canopy portion (46) arranged at a position opposite to a cover portion (12) of the cultivation tray (3), and side portions (42, 44) arranged at sides of a side portion (18) of the cultivation tray (3). The canopy portion (46) and the side portions (42, 44) can shield from light, and have a reflection surface for reflecting light toward the cultivation tray (3).本發明提供一種無論是自然光還是人工光,皆可對所栽培之植物有效地照射光之室內裝置。室內裝置1具備:栽培托盤3,其供栽種植物;照明裝置5,其向栽培托盤3照射光;及框體7,其支撐照明裝置;且框體7具有配置於與栽培托盤3之蓋部12對向之位置之頂棚部46、與配置於栽培托盤3之側部18側之側部42、44;頂棚部46及側部42、44對光具有遮蔽性,且具有向栽培托盤3反射光之反射面。1‧‧‧室內裝置3‧‧‧栽培托盤7‧‧‧框體7a‧‧‧開口部7b‧‧‧開口部10‧‧‧貯存部12‧‧‧蓋部14‧‧‧培養皿15‧‧‧溫度貼片18‧‧‧側部20‧‧‧本體部20a‧‧‧表面24a‧‧‧突出部24b‧‧‧突出部40‧‧‧載置部40a‧‧‧載置面41‧‧‧定位部42‧‧‧側部44‧‧‧側部44a‧‧‧側部44之內面46‧‧‧頂棚部46b‧‧‧上表面48‧‧‧散熱狹縫C2‧‧‧彎曲面S‧‧‧栽培空間