The invention discloses a full-automatic coating stirring spray coater comprising an electric high-pressure air free membrane pump, a cooling fan, a clutch, a stirring shaft, a dispersion disk, a material sucking pipe, a filtering material sucking opening, a motor, an upper end fixed bearing, a lead screw, a fixed track, an operating trolley, a lower end fixed bearing, a first solenoid valve, a flow controller, a tee branch, a water inlet pipe, a rapid water-containing opening, a spray gun, a discharging pipe, a machine shell body, a material barrel, liquid material bottles, second solenoid valves, material inlet pipes and a controlling panel. According to the full-automatic coating stirring spray coater, surplus preparation is not needed before construction spraying of the coating project; various power raw materials can be directly processed to be finished coating capable of being directly smeared on a wall, a middle link and various construction equipment of factory processing are not needed, and feed materials are intelligently and automatically metered; operation is easy, the spraying effect is good, and the construction effect of spraying operation is effectively guaranteed; the construction equipment can be decreased; labor is saved; the construction period is shortened; and energy saving and environmental friendliness are achieved.