The utility model discloses a light hernia repair patch. The hernia repair patch is a flat mesh fabric formed by weaving monofilaments, wherein the monofilaments comprise a first monofilament and a second monofilament, the mesh fabric is composed of a plurality of meshes, each mesh is of a hexagonal structure and is formed by weaving the first monofilaments, the aperture of each mesh is 3-5 mm, and a common edge is arranged between every two adjacent meshes; and two second monofilaments which are parallel to each other are arranged in the mesh holes and penetrate through each mesh hole. The gram weight of the light hernia repair patch is 30-45g/m < 2 >, the light hernia repair patch is light in weight, and the quantity of foreign matters is reduced, so that inflammatory reaction is reduced; two parallel vertical monofilaments are arranged in each hexagonal mesh, the mechanical strength of the patch is enhanced, the longitudinal tensile strength of the patch can reach 30-54 N/cm, and itis guaranteed that the strength of the patch can meet clinical use.