The invention discloses an improved folding-wing unmanned aerial vehicle for municipal garden greening.The improved folding-wing unmanned aerial vehicle comprises a vehicle body and wings, wherein the vehicle body is provided with an inner cavity, the left side and the right side of the inner cavity are through, a first motor is arranged on a front plate of the inner cavity, a lead screw arranged in the same direction with the vehicle body is connected to the first motor, a gear is symmetrically meshed on the two ides of the lead screw respectively, the centers of the gears are connected to the vehicle body through middle shafts, rotating plates are connected to the side walls of the gears, supporting plates are vertically connected to the outer ends of the rotating plates, first air cylinders are connected to the front ends of the supporting plates, the front ends of the first air cylinders are connected with second motors, output shafts of the second motors are connected with first threaded rods, first nuts for being screwed with the first threaded rods are further arranged on the front plate of the inner cavity, and second air cylinders are arranged on the side walls, on the same side with the rotating plates, of the supporting plates.The wings can be conveniently folded and put away and are convenient to store, and the improved folding-wing unmanned aerial vehicle has practicability.