Rolled up the glass film forming step (S1) and a protective film (F1) on a glass film (G) at the downstream end of the transport path of the forming step (S1) for transporting and continuously molding the (G) by a down draw method a roll the volume taken original glass roll 14 temporarily winding for producing a step (S3), a source of glass roll by unscrewing the glass film (G) from 14 conveyed to the downstream side also with addition of glass film at the downstream end of the conveying path taking (G) overlapping the protective film (F2) into a roll again Issues to include the take-up step (S4) for producing a glass roll 16. Then, the take-up direction of the tensile force acting on the glass film (G) significantly in the take-up step (S4) than the temporary take-up process (S3).