The invention provides a paper feed mechanism for a film laminating machine, the film laminating machine and a film laminating system, relates to the technical field of film laminating, and solves the problems that printing materials to be covered with films are usually conveyed one by one through manual work, and efficiency is low. The paper feed mechanism for the film laminating machine comprises a conveying plate used to place at least one printing material to be covered with the film, wherein an adjustment component is placed below the conveying plate, a first level paper separation component is arranged right above a portion of the conveying plate, not located at the center of the conveying plate, a second level paper separation component is arranged behind the first level paper separation component, a paper feed component is arranged behind the second level paper separation component, a conveying channel is placed between the first level paper separation component and the second level paper separation component, a pressure inductive sensor is arranged on the conveying channel, and paper separation and printing material conveying and film laminating are achieved among the first level paper separation component, the second level paper separation component and the paper feed component achieve through rubber rollers.