A wide-angle lens comprising: a front lens group (L1, L2, L3) and a rear lens group that are arranged in order from an object side toward and image side, an aperture being arranged between the front lens group (L1, L2, L3) and the rear lens group; wherein the front lens group (L1, L2, L3) includes at least two lenses (L1, L2) arranged toward the object side that have negative powers, and at least one third lens arranged toward the image side that has a positive power and a refractive index of 1.62004, wherein the first, second and the at least one third lens are arranged in order from the object side toward the image side; the rear lens group includes at least a fourth lens having a positive power and a refractive index of 1.61800; the second lens of the front lens group has a refractive index of 1.83917 and has third and fourth lens surfaces, wherein the third lens surface having a radius of curvature of -4.285 mm or fourth lens surface having a radius of curvature of 8.383 mm is arranged into an aspheric surface; and the front lens group (L1, L2, L3) and the rear lens group are arranged into an image forming system having an angle of view greater than 180 degrees, wherein the surface coordinate Z of the aspherical surface of the fourth lens face in the direction of an optical axis of the wide-angle lens is defined by Z = h 2 / R / 1 + 1 − 1 + K h 2 / R 2 1 / 2 + Ah 2 + Bh 4 + Ch 6, where Z is defined in units of mm, and where h represents a coordinate in the vertical direction with respect to the optical axis, h being defined in units of mm, Z represents a coordinate in the optical axis direction, R represents a paraxial radius of curvature defined in units of mm, K=-97.078624 represents a conic constant, and A=0.450558·10 -1 mm -1, B=0.115498·10 -1 mm -3 and C=0 mm -5 represent high order aspheric surface coefficients; wherein the Abbe number of the first lens, denoted by vd1; the Abbe number of the second lens, denoted by vd2; the Abbe number of the third lens, denoted by vd3; and the Abbe number of the fourth lens, denoted by vd4 are arranged to satisfy conditions: vd1≤40; vd22≤25; vd23≥60; and vd4≥60. a front lens group (L1, L2, L3) and a rear lens group that are arranged in order from an object side toward and image side, an aperture being arranged between the front lens group (L1, L2, L3) and the rear lens group; wherein the front lens group (L1, L2, L3) includes at least two lenses (L1, L2) arranged toward the object side that have negative powers, and at least one third lens arranged toward the image side that has a positive power and a refractive index of 1.62004, wherein the first, second and the at least one third lens are arranged in order from the object side toward the image side; the rear lens group includes at least a fourth lens having a positive power and a refractive index of 1.61800; the second lens of the front lens group has a refractive index of 1.83917 and has third and fourth lens surfaces, wherein the third lens surface having a radius of curvature of -4.285 mm or fourth lens surface having a radius of curvature of 8.383 mm is arranged into an aspheric surface; and the front lens group (L1, L2, L3) and the rear lens group are arranged into an image forming system having an angle of view greater than 180 degrees, wherein the surface coordinate Z of the aspherical surface of the fourth lens face in the direction of an optical axis of the wide-angle lens is defined by Z = h 2 / R / 1 + 1 − 1 + K h 2 / R 2 1 / 2 + Ah 2 + Bh 4 + Ch 6, where Z is defined in units of mm, and where h represents a coordinate in the vertical direction with respect to the optical axis, h being defined in units of mm, Z represents a coordinate in the optical axis direction, R represents a paraxial radius of curvature defined in units of mm, K=-97.078624 represents a conic constant, and A=0.450558·10 -1 mm -1, B=0.115498·10 -1 mm -3 and C=0 mm -5 represent high order aspheric surface coefficients; wherein the Abbe number of the first lens, denoted by vd1; the Abbe number of the second lens, denoted by vd2; the Abbe number of the third lens, denoted by vd3; and the Abbe number of the fourth lens, denoted by vd4 are arranged to satisfy conditions: vd1≤40; vd22≤25; vd23≥60; and vd4≥60. vd1≤40; vd22≤25; vd23≥60; and vd4≥60.