High polymer material and metal composite material, and preparation process therefor

The invention discloses a high polymer material and a metal composite material, and a preparation process therefor. The high polymer material containing an extractable material and a porous metal are compounded and formed under a certain condition to prepare a sheet; and then the prepared sheet is subjected to solvent extraction to enable the extractable material therein to be extracted so as to obtain the composite material, wherein the high polymer material of the composite material is shrunk or collapsed. According to the composite material prepared by the preparation method, the porous metal protrudes out of the surface of the conductive composite material, so that the composite material is more suitable for being used as an electric contact material.