The invention discloses a stirring device for resin coating. The stirring device for resin coating is characterized by comprising a drum, a rotating shaft, a pneumatic motor, a control valve, a liquid discharging pipe, a liquid discharging valve, a controller, a first stirring rod and a second stirring rod; the rotating shaft is arranged in the drum, the pneumatic motor is arranged at one end of the rotating shaft and used for driving the rotating shaft to rotate, and the control valve is used for supplying air to the pneumatic motor; the first stirring rod and the second stirring rod are arranged on the rotating shaft and perpendicular to the rotating shaft; the liquid discharging valve is arranged on the liquid discharging pipe which is arranged at the bottom of the drum.