The invention belongs to the technical field of decorative materials, in particular, relates to a high-wear-resistant and high-weatherproof dry powder latex paint and a preparation method thereof, andsolves the problems of many bubbles, poor leveling property, difficult dispersion, poor wear resistance and poor weather resistance of a dry powder latex paint in the prior art. The high-wear-resistant and high-weatherproof dry powder latex paint includes the following raw materials: white cement, calcium carbonate, ash calcium powder, redispersible latex powder, sodium silicate, modified boron carbide, titanium dioxide, far infrared ceramic powder, wood fibers, aluminum dihydrogen phosphate, a bactericide, a silane coupling agent, and a defoamer. The prepared dry powder latex paint has the advantages of safety, environmental protection, zero VOC, stable and uniform performance, strong cohesiveness, high strength after a coating layer is formed, good leveling property, excellent wear resistance, aging resistance and corrosion resistance, fire prevention, flame retardancy, mildew prevention and bacterial resistance, is not easily discolored, has long service life, and can be widely applied in indoor and outdoor wall decoration.