The present disclosure provides a cloth attaching device and a cloth attaching method. The cloth attaching device comprises: a cylindrical base, a rubbing roller opposing the cylindrical base and an actuating unit, an annular adhesive layer covering a cylindrical surface of the cylindrical base; a first connecting component holding both ends of the cylindrical base and connecting to the actuating unit; and a second connecting component holding both ends of the robbing roller and connecting to the actuating unit. The actuating unit is configured to control a movement of the first connecting component and the second connecting component so that the rubbing roller and the cylindrical base rotate in sync or not in sync. The present disclosure overcomes defects in which the rubber pad displaces very easily and the aging process is very time consuming, which facilitates to improve fabricating efficiency and quality of the rubbing roller.