The invention relates to epoxy-phenolic-titanium-structure amine nanometer compound temperature resistant heavy anti-corrosive paint and a preparation method thereof. The paint has the following formulation: 30-40 parts of epoxy phenolic resin, 5-10 parts of nanometer compound mother solution, 6-8 parts of intensified carbon fiber, 20-23 of titanium pigment, 9-12 parts of ceramic powder, 15-25 parts of mixed solvent which are well mixed according to the proportion, dispersed and ground till grain diameter is under 40mum to prepare the component A; compound firming agent comprising 4, 4'-diamino sulfobenzide, lentine and phenol-aldehyde amine and mixed solvent are prepared to form the component B; and then the component A and the component B are blended, heated and solidified for 1-3 hoursto form the heavy anti-corrosive nanometer compound paint. The coating with the 0.1-1.0 mm thickness can resist the corrosion destruction of strong corrosive medium containing sulfureted hydrogen, sulfur dioxide, carbon dioxide, chloride and the like in the temperature of 80-150 DEG C and in the 1-40 high atmospheric pressure, solves the problems of high temperature acidity deep-etching in industries such as petrifaction, metallurgy, electrical powder and coal and the like, and effectively protect metal materials.