Mold prepared from metal-based polymer composite material and preparation method of mold

The mold comprises a bottom plate, a bottom mold body, a top plate and a top mold body, supporting columns are fixedly installed at the four corners of the upper portion of the bottom plate, the bottom mold body is fixedly installed at the center of the upper portion of the bottom plate, a male mold body is fixedly installed below the top mold body, and a female mold body is fixedly installed below the male mold body. A female die is arranged at the contact position of the male die and the bottom die. By adding more than 20 materials such as carbon, titanium, graphene, iron and tungsten carbide, compared with a conventional metal-based polymer composite material with the metal content being about 40%, the metal content in the metal-based polymer composite material can reach 87%, the problem that due to the fact that the metal is limited by specific gravity segregation of metal, the added metal amount is low, and the service life of the metal-based polymer composite material is prolonged is perfectly solved. T