To improve tire performance by balancing the on-snow, pattern noise, wear, straight running, and operation stability performances of a pneumatic tire.

A tread part 2 of the pneumatic tire 1 is sectioned into land parts 20, 21, 22 by main grooves 10, 11 extending in a circumferential direction of the tire. Further, a center land part 20 on an equatorial plane CL of the tire and shoulder land parts 22 at both sides are formed in the shape of ribs. The middle land part 21 between them is sectioned into blocks 21 B by dividing with a plurality of rug grooves 30. A sub groove 12 extending in the circumferential direction of the tire is arranged in the middle land part 21. Sipes 43, 44, 45, 46 inclining in the same direction with respect to the width direction of the tire one and another and a rug groove 31 are arranged in the shoulder land part 22.