To provide a pneumatic tire having good vulcanization adhesion force with adjacent rubbers, equipped with an inner liner suppressing increase of rolling resistance, having excellent air permeation resistance and flex crack growth resistance, and further suppressing the occurrence of air in.

There is provided a pneumatic tire equipped with an inner liner 9 including a first layer consisting of a first polymer composition containing a styrene-isobutylene-styrene triblock copolymer of 75 mass% to 99.5 mass% and an isobutylene modified copolymer of 0.5 mass% to 25 mass%, and a second layer consisting of a second polymer composition containing a styrene-isobutylene block copolymer of 10 mass% to 100 mass% and styrene-isobutylene-styrene triblock copolymer of 0 mass% to 90 mass% as polymer components, and the second layer is arranged so as to contact with a rubber layer of carcass ply 6.