PROBLEM TO BE SOLVED: To provide a liquid spray rod for a power sprayer preventing a jet pattern from being changed contrary to a worker's intention, the liquid spray rod for a power sprayer receiving influence of vibration of an engine and discharge pulsation of a pump.SOLUTION: In a liquid spray rod for a power sprayer, a shaft 11 inserted into a jetting pipe 2 advances/retreats in a pipe axial direction of the jetting pipe with rotation operation of a grip 3 for switching a jetting pattern, a valve opening of a valve 12 and a passage connection state by means of the valve 12 are changed with the advancing/retreating, and a jetting pattern of liquid introduced to the jetting pipe 2 from a spray nozzle 5 at a tip of the jetting pipe is changed. The liquid spray rod for a power sprayer includes an adjustment position retaining mechanism 14 arranged between the jetting pipe 2 and grip 3 and exerting resistance against rotation of the grip 3.SELECTED DRAWING: Figure 2