An installation structure for flower bed of a pedestrian street for environmental friendly landscape planting is provided to prevent easy distortion and destruction from external impact by having improved strength, grow more landscape plants in a limited space by a stackable planting structure, illuminate the pedestrian street by the illumination device and enable the pedestrian to appreciate the beauty of the landscape plants at night. An installation structure for flower bed of a pedestrian street comprises: a right and left triangle support plate(10,10a) with an operating recessed portion(12), axial pin(11), slope plate insertion groove(13), wiring hole(16), fastening hole(16a), hook(17), triangular connection protrude portion(18) and triangular connection recessed portion(19) inserted by the triangular connection protrude portion; a rotating transparent window(20,20a) with a right and left support frame(23,24) axially and rotatably coupled to the operating recessed portion of the triangle support plate on
