PURPOSE: To provide a method capable of easily and securely bonding expanded elastic materials onto a band-shaped sheet and to efficiently bond these elastic materials with fewer units of equipment.

CONSTITUTION: This method comprises bringing the expanded elastic materials 13 into contact or proximity apart a spacing with the continuous band-shaped sheet 1, simultaneously applying adhesives to the elastic materials 13 and the band-shaped sheet 1 and bonding the elastic materials 13 onto the surface of the band-shaped sheet 1. This adhering device is provided with guide rolls 4 to guide the traveling band-shaped sheet 1 so as to curve the sheet and to place the elastic materials 13 onto this band-shaped sheet 13 and is further arranged with an adhesive applying member 9 for simultaneously applying the adhesives on the elastic materials 13 and the band-shaped sheet 11 on the upper side of the elastic materials 13.