PROBLEM TO BE SOLVED: To prevent leakage of light generated by light sources and efficiently irradiate plants near the side faces and end faces of a plant cultivation shelf with light.SOLUTION: A plant cultivation shelf of the present invention comprises a box-shaped connection unit 122 formed by connecting a plurality of cultivation units 120, 121 each of which includes an upper plate 101 and a pair of side plates 102, or an upper plate 101, a pair of side plates 102, and one end plate 107. The plurality of cultivation units 120, 121 are connected in a longitudinal direction. In each of the cultivation units 120, 121, a plant tray 116 on which plants 111 are aligned, and light sources 100 for irradiating the plants 111 with light are provided. The side plates 102 and the end plate 107 of the respective cultivation units 120, 121 are formed by reflection material and include inclined planes 102b, 107b having upper end portions 102a, 107a, respectively and lower end portions. The upper end portions 102a, 107a of the inclined planes 102b, 107b are positioned at an inner side of the connection unit 122 relative to the lower end portions.SELECTED DRAWING: Figure 3