The utility model relates to a portable high-voltage charged cleaning tool.The portable high-voltage charged cleaning tool is characterized in that the portable high-voltage charged cleaning tool comprises a hollow insulating tube (4) internally provided with a main insulating shaft (5); a support bearing is arranged between the hollow insulating tube (4) and the main insulating shaft (5); the bottom of the hollow insulating tube (4) is provided with a motor (6), an output shaft of which is in transmission connection with the bottom of the main insulating shaft (5); the top of the main insulating shaft (5) is in transmission connection with a brush disc (2) via a flexible shaft (3); and at least one brush (1) is arranged on the brush disc (2). The portable high-voltage charged cleaning tool has following beneficial effects: cleaning effect is improved; pollution-induced flashover or electric discharge of equipment is avoided in order to improve reliability of electricity supply; and during a cleaning process, operation is performed only by one person so that the requirement for manpower is substantially reduced.