The present invention, as a landscaping facility installation method, the steps of installing a vegetation fence for landscaping at an installation target location； And installing prefabricated luminaires for landscaping around the vegetation fence for landscaping, wherein the prefabricated luminaire includes a plurality of corner supports (3) on the upper side of the panel-shaped substrate (2) having a plurality of fastening holes (1) (1') ) (3') are vertically installed, and vertical insertion grooves 4, 4'are formed on the side circumferential surfaces of the corner supports 3 and 3', respectively, so that the corner supports 3 and 4 are adjacent to each other. The decorative plate 5 and the light-transmitting plate 6 are sequentially inserted into the insertion grooves 4 and 4'of 3'), and the substrate 2 is formed with an extension 2a of a certain area under the And, the extension part (2a) is partitioned through one or more partition spaces (P) in the central part at the lower part, and at least 1-1 mounting body 111 and 1-2 mounting body extending downward in parallel with each other A first mounting body 110 including a body 112 is provided, and the extension portion further includes a first slot module 120 into which the first mounting body 110 is inserted and mounted, and the first The slot module 120 includes a base portion 121 on which the first mounting body 110 is positioned, a first outer panel portion 122 and a first outer panel portion 122 extending upward from the outer sides of both sides of the base portion 121, respectively. 2 It includes an outer panel part 123 and an insertion part 124 extending upwardly so as to be inserted into the partition space part P from the base part 121, and the insertion part 124 includes the base part ( 121) rotates and presses the inner surface of the first mounting body 110 through circumferential rotation, and the first outer panel part 122 includes a plurality of first push modules 130 positioned inwardly. It is
