To realize a stable pasting with a strong adhesion to the outer periphery of a plate cylinder so as to make both the peripheral ends of a plate material difficult to separate from each other by elastically contact-bonding with an contact bonding means at the pasting both the peripheral ends of the plate material onto the outer periphery of the plate cylinder through a two-layer adhesive of an inner and an outer layers.

A horizontal pair of sprocket holes provided at the terminal ends 5d of a plate material 5 are contact-bonded with a horizontal part of pressure rollers to a horizontal pair of first pins 55a provided on the outer periphery of a plate cylinder 2 so as to put the terminal end 5d of the plate material onto the tip 5c of the plate cylinder 5 through self-adhesives 31 in order to doubly paste the plate material within an without. Further, by turning the plate cylinder 2 to the direction indicated with the arrow a' in succession by a predetermined angle or more, both the ends 5c and 5d piled up doubly within and without the plate materials 5 are passed through a pressure roller 62 portion to the direction indicated with the arrow a'. At that time, the pressure roller 62 elastically pressurizes the two or inner and outer layers of the self-adhesives 31 and 32 of both the ends 5c and 5d of the plate material 5 through the elastic layer 62a provided at the outer periphery of the pressure roller 62 against the outer periphery of the plate cylinder 2 from the direction indicated with the arrow (i) by excessive contact-bonding force.