The invention relates to a bisphenol monomer with a spiro ring structure and a preparation method thereof. The monomer can be prepared by acylation reaction, condensation and substitution and other reaction steps of anisole, and a block copolymer polymer electrolyte material with proton conductivity and gas permeability can be obtained by polymerization reaction of the spiro ring-containing bisphenol monomer with a sulfonic group-substituted difluoroaryl compound. The polymer electrolyte material can be further used as a catalyst adhesive in fuel cell membrane electrode assemblies, and has potential wide applications in the research and development of new energy battery materials.