Abstract: Multifunctional composite building materials, which are obtained by mixing nano silicon dioxide, nano titanium dioxide, nano aluminum oxide and nano zinc oxide with nano nickel-cobalt ferrite or nano nickel-zinc ferrite; surface active agent; air entrained agent such as diethanolamine lauryl sulphonate, protein extracts, pulp waste liquid, diatomite; “kumgang” medical stone; viscosifier such as hydroxyl ethyl cellulose and foam elimination agent such as tributylphosphoric acid ester or butanol in a certain ratio.