The invention discloses a multifunctional cleaning device. The device comprises an operation rod, a motor, a cleaning disc and a control switch. The motor is arranged at the end of the operation rod, and the cleaning disc is connected with an output shaft of the motor and rotates under the drive of the motor to perform cleaning. The control switch is arranged on the operation rod and is electrically connected with the motor through a power line and controls the rotation of the motor. By means of the device, porcelain insulators on power lines can be cleaned conveniently, car and door and window glass can also be cleaned conveniently, and pressure and loads of workers are greatly reduced.