The invention discloses an anti-static modification foaming cement and polyurethane foam composite insulation board. The composite insulation board is prepared from, by weight, 3-4 parts of waste cotton hemp fiber, 1-1.2 parts of chlorcosane, 0.3-0.34 part of fatty alcohol-polyoxyethylene ether, 45-50 parts of ultrafine Portland cement, 3.5-4 parts of hydrogen peroxide with the concentration being 30 wt%, 3-3.5 parts of gypsum powder, 2-3 parts of stearic acid, 2.5-3 parts of aluminum sulfate, 1.6-1.8 parts of organic silicon, 2-3 parts of a bisphenol A type epoxy resin emulsion, 2-3 parts of oxidized graphene, 0.8-1 part of polyvinyl alcohol, 0.7-0.8 part of 3-triethoxysilylpropylamine, a proper amount of deionized water, 75-80 parts of polyoxypropylene polyol, 23-25 parts of isocyanate, 2.2-2.4 parts of N,N,N,N',N'-pentamethyldiethylenetriamine, 10-12 parts of n-pentane, 1.5-2 parts of dimethicone and 8-10 parts of ammonium polyphosphate. The obtained composite insulation board resists static electricity and fire and achieves heat insulation.