The invention provides lacquer putty powder for performing sterilization and mildew proofing on the wall body. The compositions of the lacquer putty powder in percentage by weight are 1 to 20 percent of coarse whiting powder, 20 to 80 percent of large white powder, 0.01 to 15 percent of high-viscosity cellulose, 0.01 to 15 percent of pre-gelatinized starch, 1 to 60 percent of micronized talc powder and 0.001 to 10 percent of zinc oxide. The lacquer putty powder can be uniformly coated on a skin crack position, a peeling position, a fine removal position and so on of the wall body, can also be directly coated on a mould growth position, maintains that the mould can not grow on the metope within 5 to 8 years. The lacquer putty powder is used for removing the mould which is grown on the surface of the metope due to wetting and peeling, and the wall skin is required to be shoveled when the lacquer putty powder is used. The lacquer putty powder is added with water for stirring and directly coated on the metope, so as to have the efficacies of moisture protection, antibacterium and crack resistance. Moreover, the lacquer putty powder has the advantages of wide source of raw materials, simple manufacturing technique, low product cost, easy knifing, quick drying, strong adhesion, easy grinding, rigid, smooth and refined texture and so on.