Novel crosslinking polyolefin insulating material and preparation method and application thereof

The invention relates to novel crosslinking polyolefin insulating material and a preparation method and application thereof. According to the technical scheme, the novel crosslinking polyolefin insulating material comprises material A and material B, wherein the weight ratio of the material A to the material B is 90-97:3-10; the material A comprises basic resin; the material B comprises, by weight, 1-20 parts of crosslinking agent, 50-100 parts of auxiliary-absorbing base material, 1-5 parts of main antioxidant and 1-3 parts of auxiliary antioxidant. The preparation method includes: evenly mixing the material A and the material B according to the weight, and performing screw extrusion and pelletizing to obtain the novel crosslinking polyolefin insulating material. The novel crosslinking polyolefin insulating material is capable of enhancing the compatibility among materials, capable of crosslinking under a natural environment, fast in crosslinking, simple in processing process, high in crosslinking degree, re