PROBLEM TO BE SOLVED: To solve such problems that flexibility of selecting patterns is reduced by necessity that positions of markers to be printed on a back sheet are regulated regardless of the patterns to be printed on the same back sheet and a part of a production line may be changed according to the positions of the markers to be printed on the back sheet.SOLUTION: An absorbent article 10 includes: a cover sheet 11; a liquid-impermeable back sheet 12 to be joined with the cover sheet 11; a liquid-permeable top sheet 14 to be joined with the back sheet 12; and an absorber 13 disposed between the back sheet 12 and the top sheet 14. The cover sheet 11 has a front body area 10F, a back body area 10R and a crotch area 10C. The back sheet 12 includes patterns A and B and markers M printed thereon, where the markers M are printed on both left/right sides of the back sheet 12.