The invention belongs to the technical field of wax mold production, and particularly relates to a high-strength wax mold and a manufacturing process thereof. The high-strength wax mold comprises, byweight, the following components of iron, carbon, silicon, manganese, nickel, chromium, molybdenum, nanoscale silicon carbide, rare earth elements, antimony and zinc. The manufacturing process of thehigh-strength wax mold comprises the following steps that S1, smelting is conducted; S2, pouring and molding are conducted, the raw material smelted in the S1 is poured into the mold, cooling is conducted, and demolding is conducted after cooling and molding; S3, heat treatment is conducted; S4, chemical corrosion is conducted, and the wax mold after the heat treatment is immersed into a chemicalcorrosive agent solution for chemical corrosion; and S5, packaging and warehousing are conducted. According to the high-strength wax mold and the manufacturing process thereof, excellent structural strength, tensile strength and yield strength are achieved, so that defects of manufactured products due to deformation of the wax mold can be effectively prevented, the wax mold is not easy to oxidize,the service life is long, the preparation process is simple, and production is convenient.