The invention belongs to the technical field of powder metallurgy, and particularly discloses an alloy mixing process. The alloy mixing process comprises the following steps that firstly, paraffin isgasified and then fed into a mixing pipe, wherein the mixing pipe comprises a first segment, a second segment, a third segment and a fourth segment; secondly, the temperature of the first segment is reduced; thirdly, argon serves as carrying current to bring metal powder oxygen into the second segment, and meanwhile, the second segment is cooled; fourthly, the temperature of the third segment is reduced; fifthly, the temperature of the fourth segment continues to be reduced; sixthly, left metal powder is collected at the tail end of the fourth segment; and seventhly, paraffin in the second segment, paraffin in the third segment and paraffin in the fourth segment are scraped down, the paraffin is put into mixing equipment, and mixing at the different temperatures, different rotor rotating speeds and different times is carried out through three stages. By means of the alloy mixing process, the purpose of solving the problem that metal powder and a binding material are not mixed uniformlyis achieved.