A pneumatic tire comprising: a tread portion whose radially outer surface defines the tread, a pair of sidewall portions, a pair of bead portions, a carcass extending between the bead portions through the tread portion and the sidewall portions, and a tread reinforcing layer disposed radially outside the carcass in the tread portion, and comprising a net structure formed from a tape of rubber in which a single reinforcing cord or plural reinforcing cords are embedded along the length of the tape, wherein the net structure comprises two or more first oblique segments in which the tape is inclined with respect to the tire circumferential direction to one side in the tire axial direction, and two or more second oblique segments in which the tape is inclined with respect to the tire circumferential direction to the other side in the tire axial direction, side edges of the first oblique segments do not contact with each other, side edges of the second oblique segments do not contact with each other, and the first oblique segments and the second oblique segments intersect with each other, forming interspaces therebetween. wherein each of the first oblique segments has a first axial outer part in which the angle of the tape with respect to the tire circumferential direction decreases toward one end in the tire axial direction of the net structure, and each of the second oblique segments has a second axial outer part in which the angle of the tape with respect to the tire circumferential direction decreases toward said one end in the tire axial direction of the net structure, and said first axial outer part is connected to said second axial outer part through a circumferential segment in which the tape extends in the tire circumferential direction characterized in that the circumferential length of said circumferential segment is 1/N times the circumferential length (La) of the tread reinforcing layer measured at the axial position of said circumferential segment, wherein "N" is the number of the first oblique segments. a tread portion whose radially outer surface defines the tread, a pair of sidewall portions, a pair of bead portions, a carcass extending between the bead portions through the tread portion and the sidewall portions, and a tread reinforcing layer disposed radially outside the carcass in the tread portion, and comprising a net structure formed from a tape of rubber in which a single reinforcing cord or plural reinforcing cords are embedded along the length of the tape, wherein the net structure comprises two or more first oblique segments in which the tape is inclined with respect to the tire circumferential direction to one side in the tire axial direction, and two or more second oblique segments in which the tape is inclined with respect to the tire circumferential direction to the other side in the tire axial direction, side edges of the first oblique segments do not contact with each other, side edges of the second oblique segments do not contact with each other, and the first oblique segments and the second oblique segments intersect with each other, forming interspaces therebetween. wherein each of the first oblique segments has a first axial outer part in which the angle of the tape with respect to the tire circumferential direction decreases toward one end in the tire axial direction of the net structure, and each of the second oblique segments has a second axial outer part in which the angle of the tape with respect to the tire circumferential direction decreases toward said one end in the tire axial direction of the net structure, and said first axial outer part is connected to said second axial outer part through a circumferential segment in which the tape extends in the tire circumferential direction characterized in that the circumferential length of said circumferential segment is 1/N times the circumferential length (La) of the tread reinforcing layer measured at the axial position of said circumferential segment, wherein "N" is the number of the first oblique segments.