The invention belongs to the technical field of park and garden construction, and particularly relates to a spray irrigation device used for park and garden construction. According to the following scheme, the spray irrigation device used for park and garden construction comprises a storage shell, wherein a filtering shell is installed on an outer wall of the top of the storage shell, a water pumpis installed on an inner wall of the bottom of the storage shell, a water outlet pipe is installed at an output end of the water pump, a connection pipe is installed at the other end of the water outlet pipe, a circulation groove is formed in the joint of the filtering shell and the storage shell, and two spray heads are installed on an outer wall on one side of the connection pipe. In the sprayirrigation device used for park and garden construction, by arranging an arc baffle, during work, water flows sprayed by the spray heads can make impacts on the arc baffle, the arc baffle rises, at the time, vertical rods hit a push board, under the action of first connection springs and second connection springs, the arc baffle fast bounces back to the power portion, then water sprayed by the spray heads is blocked, and thus the water splashes in all directions so that the spray heads not only can spray water to remote plants, but also can spray water to plants nearby, that is to say, a spraying range is extended.