A cleaning fabric assembly used for an automatic cleaning machine includes an outer unit, a water absorbent unit, an assembly unit and a fixing unit. A plurality of openable portions, which extend from the peripheral portion of the outer unit to the center of the outer unit, are provided on top of the outer unit. The water absorbent unit and assembly unit and may inserted into the outer unit through the cracks between the openable portions. The cleaning fabric assembly of the present invention may be used to remove water stains with its water absorbent unit or by mopping the floor. Also, to uninstall the outer unit or the water absorbent unit for replacement or cleaning, a user simply has to rotate the fixing unit to disengage the male engagement pieces from the engagement portions.