Abstract: An automatic film-lid cohering machine, which consists of a film transmission structure, an anti-slide device, a film-lid cohering transmission structure, a film-lid cohered object replacement device, and a holder. This invention is essentially to simplify the anti-slide device and the holder, whereby the manufacturing cost may be lowered and installation of the film is made easier. An automatic propping device is included in the subject machine to make it faster to remove an object which has been cohered by film-lid. Gears, instead of chains, are used to operate the primary film roller to prevent slacked transmission.