The invention provides a method for refining high nickel matte, and in particular relates to a method for refining the high nickel matte for producing cathode nickel by adopting a hydrometallurgical method and using the high nickel matte as a raw material. The method is characterized in that the refining process comprises the following steps: directly casting the high nickel matte into a high nickel matte anode, electrolyzing the high nickel matte anode to obtain the cathode nickel; purifying an anolyte after the electrolysis and using the anolyte for back electrolysis of a catholyte; electrolyzing an anode scrap, performing grinding, leaching and filtering processes, and mixing the filtrate into the anolyte to perform purification; and performing conventional desulfurization on anode mud,and recovering noble metal. The method has the advantages of simple and short flow, thorough separation of copper, nickel and cobalt metals, high metal yield, less quantity of slag and good operatingenvironment.