PROBLEM TO BE SOLVED: To provide a light shielding device capable of changing the amount of incident light of light such as sunlight, and a building for raising animals and plants.SOLUTION: A light shielding device 10 comprises: a plurality of tabular shielding members 11 disposed on a window 4 of a building 1 for raising animals and plants and aligned in a first direction (Z direction)； and a holding portion 20 that rotatably holds the shielding member 11 to make a change between a shielding state where the respective plate surfaces of the shielding member 11 are arranged without gaps among them in a first direction to shield incident light and a transmission state where the plate surfaces of the shielding member 11 are made inclined with respect to the first direction to allow at least part of the incident light to be transmitted.SELECTED DRAWING: Figure 1【課題】太陽光等の光の入射光量を変化させることができる遮光装置、動植物育成用建造物建造物を提供する。【解決手段】遮光装置１０は、動植物の育成用の建造物１の窓４に配置され、第１の方向（Ｚ方向）に配列された複数の平板状の遮蔽部材１１と、遮蔽部材１１を回転可能に保持し、遮蔽部材１１の各板面を第１の方向に沿って隙間なく配置させて、入射する光を遮蔽する遮蔽状態と、遮蔽部材１１の板面を第１の方向に対して傾斜させて、入射する光の少なくとも一部を透過する透過状態とに変化させる保持部２０とを備える。【選択図】図１
