The invention provides an aerobic biological membrane material, a preparation method and application of the aerobic biological membrane material in a sewage treatment technology, and relates to the technical field of sewage treatment. The biological membrane material comprises a biological carrier material and a microbial agent or activated sludge fixed inside or on the surface of the carrier material; the biological carrier material comprises a polyurethane foam filler and porous spheres; and microorganisms fixed on the biological carrier material are aerobic bacteria. The biological membrane material provided by the invention has the advantages of high membrane forming speed, high efficiency, short time consumption, large microorganism loading capacity and adsorption capacity, good microorganism adhesive force, short starting time of a biological membrane reactor, high sewage biochemical treatment efficiency and good decontamination and decontamination effects, and can be applied to biochemical treatment technologies of garbage treatment sewage, high-ammonia-nitrogen sewage, high-phosphorus sewage and breeding sewage; and the preparation method can accelerate the biofilm formation speed of the biofilm, prolong the service life of the biofilm, realize sewage reduction and reduce the operation cost of a biological reaction system.