The invention provides a method of preparing a high-performance powder metallurgy product by coating alloy powder with an organic matter, and belongs to the field of powder metallurgy. The method comprises the following steps that the surface of the alloy powder is coated with a layer of an organic matter film by a solution coating method, the organic matter is dissolved in a solvent, a layer of aliquid film is formed on the surface of the alloy powder, after the solvent is removed, the alloy powder can be uniformly coated with the organic matter, any chemical reactions are not required, thesurface of the alloy powder is coated with the layer of the organic matter film, and the purpose that the easy-to-oxidize alloy powder is isolated from oxygen is achieved. The possibility that the surface of the easy-to-oxidize alloy powder can react with the oxygen is very high, the mechanical performance of a formed alloy component is relatively poor due to the increase of the oxygen content inthe forming process, and the organic matter is used for coating, so that the oxygen control effect in the forming process can be achieved effectively; and the oxidation resistance of the alloy powdercan be improved through the coating treatment in the forming process, so that the relatively low oxygen content and the good mechanical performance are advantageously kept after the forming is carriedout.