A pneumatic tire for motorcycle capable of increasing peel resistance of a joint portion between regions against a larger lateral force when a camber angle is large, characterized in that each approximate straight line at a meridional section of join lines between a central tread rubber 7a and an intermediate tread rubber 7b and between the intermediate tread rubber 7b and a shoulder tread rubber 7c is extended obliquely in a direction of intersecting a phantom extended line of the each approximate straight line with the tire equatorial plane inside the tire, and an intersecting angle β of the approximate straight line j2 of the join line between the intermediate tread rubber 7b and the shoulder tread rubber 7c with a tangential line drawn to a joint point of these tread rubbers at a ground contact surface and located at the side of the tire equatorial plane is smaller than an intersecting angle α of the approximate straight line j1 of the join line between the central tread rubber 7a and the intermediate tread rubber 7b with a tangential line drawn to a joint point of these tread rubbers at the ground contact surface and located at the side of the tire equatorial plane.