The invention relates to the technical field of artificial intelligence, and discloses an artificial intelligent municipal garden water spraying method with an adjustable spraying range. The intelligent municipal garden water spraying method has the advantages that by structurally connecting a spray head at the right side of a water outlet pipe, a rotary shaft, a flaring plate, a secondary reciprocating spring, an elastic pull column, a fixed block, a clamp groove and a limiting rubber ring, a spraying area at the spray head can be conveniently and directly adjusted when an artificial intelligent municipal garden water spraying device is applied to municipal garden sprayed parts with different areas; the elastic pull column can be pulled back by the secondary reciprocating spring via elasticity, and the caliber size of the flaring plate is effectively increased; by forming the clamp groove in the elastic pull column, the limiting rubber ring is effectively clamped into the clamp groove, so that the expanding size of the flaring plate is effectively controlled, and the water spraying area is conveniently and precisely controlled.