PROBLEM TO BE SOLVED: To provide an indoor plant cultivation device with high irradiation efficiency by a light source which is capable of adjusting an irradiation amount corresponding to variation of the growth state of the plant.SOLUTION: A plurality of planting containers B are detachably attached at a predetermined interval to a plurality of support cables 20 which are disposed along a plurality of mother wires M of an inverted conical face CS having an axial center C of a support post 14 as a central axis and attached detachably at a predetermined interval. As a result, the containers are positioned along the inverted conical face CS having the axial center C of the support post 14 as a central axis, so that irradiation to plants P planted in each planting container B is performed at high efficiency by a single light source 12. Further, a worm-type reducer 30 (feeding device) can feed the support cable 20, so that adjustment of an irradiation amount corresponding to variation of the growth state of the plants P and a required irradiation amount is made possible. Particularly, such effect is important in the case of raising different types of plants.SELECTED DRAWING: Figure 1
