To suppress the occurrence of partial abrasion to a shoulder land part.

This pneumatic tire is provided with a plurality of circumferential grooves 6 in a tread surface 5 while a belt 2 and a tread 3 are successively arranged in an external peripheral side of a crown part of a carcass 1, and the tire is constituted by circularly annularly burying two layers of cord layers 8, 9 mutually crossing a cord between the layers as an attitude extending each cord in a surface almost in parallel to an equatorial surface of the tire in the vicinity of a rib surface in almost the central part in a width direction of a shoulder rib 7 partitioned in the vicinity of a side edge of the tread surface 5.