The present invention addresses the problem of providing an absorbent article (1) in which a bonding part for bonding a liquid-permeable layer (2) to an absorbent core (41) has been formed in a low-basis-weight region (411a, 411b) of the absorbent core and which has all of sufficient flexural rigidity of the bonding part, sufficient bonding strength of the bonding part, and sufficient liquid-absorbing properties. This problem is solved with an absorbent core which comprises a first region that has a given absorbent-material basis weight and second regions (regions 411a, 411b) that have a lower absorbent-material basis weight than the first region, wherein the ratio of the basis weight of a highly absorbing polymer to the basis weight of the absorbent material in the second regions is regulated to 10/100 to 47/100, and compressed parts (5a, 5b) are formed inside the second regions.
