The invention discloses an automated glass cleaning device suitable for a high-rise building and a using method of the automated glass cleaning device. The automated glass cleaning device comprises a hoisting mechanism, a platform, a retractable device and a cleaning device body, wherein the hoisting mechanism comprises a crane; the platform is hung by the crane; by a lifting hook, a steel wire rope and a motor, the platform moves vertically; by a rotating table, the platform moves in the left-right direction; the cleaning device body comprises a shaft barrel and a water collecting device; the shaft barrel is a semi-elliptical barrel; the right bottom surface of the shaft barrel is connected with a rotating shaft; the right side surface of the shaft barrel is connected with the semi-cylindrical water collecting device; the left bottom surface of the shaft barrel is opened; the left side of the shaft barrel is an arc-shaped plate; a scraper blade is mounted on the arc-shaped plate; the retractable device comprises a rope, a compression spring, a reel and a motor; a four-rod mechanism is connected with the retractable device and is controlled by the retractable device; and the motor, a water pump and a flexible shaft are connected by gear drive to form a fixed transmission ratio. The automated glass cleaning device suitable for the high-rise building has the advantages of convenience in use, low labor intensity, thorough corner cleaning, high efficiency and high safety. By the automated glass cleaning device, glass of the high-rise building can be cleaned.