A friction transmission belt comprising: short fibers arranged so as to protrude from a surface of a pulley contact-side part made of a rubber composition, wherein the short fibers consist of aramid short fibers and non-aramid synthetic short fibers; wherein the aramid short fibers include only para-aramid short fibers, only meta-aramid short fibers, or both, and wherein a standard moisture regain of the para-aramid short fibers is 3% and the standard moisture regain of the meta-aramid short fibers is 5,25% respectively, and wherein the non-aramid synthetic short fibers are polyester short fibers having a standard moisture regain of equal to or less than 4%, wherein an area occupancy of the short fibers at the surface of the pulley contact-side part is 40 to 99%, wherein an area occupancy of the aramid short fibers at the surface of the pulley contact-side part is 30 to 80%, wherein an area occupancy of the non-aramid synthetic short fibers at the surface of the pulley contact-side part is 15 to 65%, wherein a ratio of the area occupancy of the aramid short fibers at the surface of the pulley contact-side part to the area occupancy of the non-aramid synthetic short fibers at the surface of the pulley contact-side part is 0.1 to 10, wherein the rubber composition forming the pulley contact-side part contains the short fibers, wherein a mixing amount of the short fibers with respect to 100 parts by mass of a rubber component of the rubber composition forming the pulley contact-side part is 10 to 85 parts by mass, wherein a mixing amount of the aramid short fibers with respect to 100 parts by mass of the rubber component of the rubber composition forming the pulley contact-side part is 2 to 25 parts by mass and wherein a mixing amount of the non-aramid synthetic short fibers with respect to 100 parts by mass of the rubber component of the rubber composition forming the pulley contact-side part is 5 to 60 parts by mass. short fibers arranged so as to protrude from a surface of a pulley contact-side part made of a rubber composition, wherein the short fibers consist of aramid short fibers and non-aramid synthetic short fibers; wherein the aramid short fibers include only para-aramid short fibers, only meta-aramid short fibers, or both, and wherein a standard moisture regain of the para-aramid short fibers is 3% and the standard moisture regain of the meta-aramid short fibers is 5,25% respectively, and wherein the non-aramid synthetic short fibers are polyester short fibers having a standard moisture regain of equal to or less than 4%, wherein an area occupancy of the short fibers at the surface of the pulley contact-side part is 40 to 99%, wherein an area occupancy of the aramid short fibers at the surface of the pulley contact-side part is 30 to 80%, wherein an area occupancy of the non-aramid synthetic short fibers at the surface of the pulley contact-side part is 15 to 65%, wherein a ratio of the area occupancy of the aramid short fibers at the surface of the pulley contact-side part to the area occupancy of the non-aramid synthetic short fibers at the surface of the pulley contact-side part is 0.1 to 10, wherein the rubber composition forming the pulley contact-side part contains the short fibers, wherein a mixing amount of the short fibers with respect to 100 parts by mass of a rubber component of the rubber composition forming the pulley contact-side part is 10 to 85 parts by mass, wherein a mixing amount of the aramid short fibers with respect to 100 parts by mass of the rubber component of the rubber composition forming the pulley contact-side part is 2 to 25 parts by mass and wherein a mixing amount of the non-aramid synthetic short fibers with respect to 100 parts by mass of the rubber component of the rubber composition forming the pulley contact-side part is 5 to 60 parts by mass.