Amorphous materials are very attractive materials because of their unique properties, including high corrosion resistance and catalytic activity. Creating such materials on a nanoscale is very effective in maximizing their performance. However, it is difficult to synthesize amorphous nanomaterials by conventional rapid cooling methods, commonly used for bulk amorphous materials. Therefore, there are not as many reports about amorphous nanomaterials as bulk materials. Herein we report the first synthesis of Pd–Pt–P amorphous nanoparticles by a two-step synthesis method. They were also characterized.