The common preparation methods of TZM alloy (molybdenum zirconium titanium alloy) are: arc melting-casting method and powder metallurgy technology. The arc melting-casting method of TZM alloy rod is to melt pure molybdenum with electric arc, add a certain amount of alloying elements such as Ti and Zr by weight percentage, and then obtain TZM alloy (molybdenum zirconium titanium alloy) by conventional casting method; powder metallurgy has unique characteristics. chemical composition and mechanical and physical properties that cannot be obtained by traditional casting methods. The high-purity molybdenum powder is uniformly mixed with TiH2 powder, ZrH2 powder and graphite powder in proportion, and then formed by cold isostatic pressing, and then sintered at high temperature in a protective atmosphere to obtain a TZM billet. The billet is then subjected to high temperature hot rolling (high temperature forging), high temperature annealing, medium temperature hot rolling (medium temperature forging), medium temperature annealing to eliminate stress, and then warm rolling (warm forging) to obtain TZM finished material. The rolling (forging) process of the billet and the subsequent heat treatment have a great influence on the properties, anisotropy and texture of the material. The use of powder metallurgy can save large equipment such as vacuum consumable electric arc furnaces, large extruders, forging hammers, and corresponding high-temperature heating furnaces, simplify the process, shorten the production cycle, reduce energy consumption, and double the production capacity and yield. , so the cost is greatly reduced.