The utility model discloses a safety protection device for street lamp installation. The device comprises a bottom plate, a fixed frame, a fence, a bottom buffer mechanism and a side buffer mechanism,fences are welded to the four edges of the upper end of the bottom plate. a fixed frame is welded at the top end of the fence; a bottom buffer mechanism is mounted on the bottom surface of the bottomplate; the bottom plate, the fixed frame and the fence form a safety protection platform; the middles of the two sides of the inner wall of the safety protection platform are each provided with a fixing ring. an elastic band is bolted on the two fixing rings; the other ends of the two elastic bands are respectively connected with a first waistband and a second waistband; a clamping ring is fixedto the other end of the first waistband, a clamping belt is fixed to the other end of the second waistband, the clamping belt is connected with the clamping ring in a clamped mode, a side buffering mechanism is arranged on the periphery of the safety protection platform, and a controller is arranged on one side of the upper surface of the bottom plate. The safety protection device is good in safety protection effect and high in intelligent degree.