PROBLEM TO BE SOLVED: To provide a wrap machine capable of winding a film around a roll bale even when an adhesive surface of a film roll is inside out.SOLUTION: A wrap machine 1 for winding a film on a surface of a roll bale 9 comprises: a film holding part 6 for rotatably holding a cylindrical film roll 8 and a first roller 41, a second roller 42, and a third roller 43 which make the film delivered from the film roll 8 meander. When a film roll 8a having strong adhesion on the inside is used, the first roller 41 and the second roller 42 are made to meander, and the film is wound on the roll bale 9 after being stretched. On the other hand, when a film roll 8b having strong adhesion on the outside is used, the film roll 8b is loaded upside down and wound on the roll bale 9 while the first roller 41 to the third roller 43 are made to meander in a reverse direction.