Modern powder metallurgy technology has become the most important preparation method of non-equilibrium materials. The use of these technologies not only can significantly improve the performance of traditional materials, but also the development of new materials. The ultra-fine powders were prepared by evaporative condensation method, and the amorphous, quasicrystal and microcrystalline materials were prepared by rapid condensation technique. The nanocrystalline materials were prepared by mechanical alloying. The ultrahigh pressure or ultra-high temperature Synthetic powder metallurgy products with special properties, the use of special forming and special sintering method to maintain the material in the metastable phase and the preparation of non-equilibrium materials.