Office have a great environmental impact due to wasting natural resources, which blocks the ambient light and uses a large number of artificial illuminations. Besides, under high thermal conduction in summer, running air conditioners cause excessive waste of energy. The natural resources of ambient light is usually being sacrificed by the tinted window film, but using bioilluminant can solve this problem. In addition to the direction and illuminance of the light can be controlled just like curtains, the water medium also can reduce the temperature conductivity. To make good use of the natural resources and decrease the waste are the main issue that we aim to solve. The basis of the diverse directions and positions of sunlight correspond with different hours, the bioilluminant device adjust light permeability due to it changing density. As a biological green wall, it brings natural light to the interior.