A throttle lever (82) for an engine (16) of a backpack type power sprayer (10) is positioned below a liquid tank (11). The lower surface of the throttle lever is protected by a lever guard (85) disposed below the throttle lever. The throttle lever is disposed to the inside in the direction of width of the liquid tank with respect to a line (La) passing through a side end (11c) protruding the most to the side on a side surface (11b) in the direction of width of the liquid tank and a side end (85b) of the lever guard.
