Window cleaning machine

The utility model discloses a window cleaning machine which comprises a window frame fixing frame used for being fixed to a window frame of a window; the rotating shaft driving part is arranged on thewindow frame fixing frame; the rotating shaft is in driving connection with the rotating shaft driving part for driving the rotating shaft to rotate; one end of the arm rod assembly is fixed on the rotating shaft; the brush head is arranged on the arm rod assembly; the brush head driving part is in transmission connection with the brush head and used for driving the brush head to rotate; and thespray head is used for spraying cleaning liquid to the brush head. The window frame fixing frame is fixed to a window frame of a window. The arm rod assembly is arranged outside the window; the brushhead is aligned with the out-window glass; the brush head driving part drives the brush head to rotate; the spray head sprays cleaning liquid to the brush head; in the cleaning process, according to the cleaning position, the r