The invention relates to a spraying device for municipal ornamental plants, in particular to a high-efficient spraying device for the municipal ornamental plants. The invention aims to solve the technical problem so as to provide the high-efficient spraying device for the municipal ornamental plants, which is uniform in spraying, high in practicability, and time and labor saving. In order to solve the technical problem, the invention provides the high-efficient spraying device for the municipal ornamental plants, which comprises a water tank, wheels, a first flexible
pipe, a first bearing seat, a left frame, a pushing
handle, a support, an electric push rod, a top plate, a slide rail, a slide block, a convex block, a rolling wheel, a first fixed plate, a spring, a first cylinder body, a first
piston, a moving rod, a rack, a spray head, a rotary shaft, a second
piston, a first one-way valve and the like, wherein the wheels are bilaterally and symmetrically arranged on the bottom part of a base plate. The high-efficient spraying device for the municipal ornamental plants provided by the invention achieves the effects of uniformity in spraying, high practicability, and time and labor saving, and is novel in structure, sturdy and durable, the labor intensity of workers can be reduced, the labor cost is reduced, and the put-in working efficiency of the workers is effectively improved.