To provide a plastic film laminating device capable of achieving a reduction in size of a plastic film transfer mechanism section.

In the plastic film laminating device 1000 having a plastic film peeling mechanism section 1000A for peeling a plastic film from a mat film and a plastic film laminating mechanism section 1000B for sticking a plastic film on a base film, the plastic film laminating mechanism section 1000B includes a base film holding mechanism section 800, a plastic film transfer mechanism section 700 having a plurality of arms connected in multiple stages and an arm vertical motion mechanism section capable of moving the plurality of arms vertically in a perpendicular manner, and a sucking and holding device 900 fitted to the end of the first arm of the plurality of arms having the function to suck a plastic film and the function to stick the sucked plastic film on the base film.