The invention discloses a making method of metal copper powder in the metal material technique domain, which comprises the following steps: adapting mechanic grinding method, liquid-phase electrochemical method or liquid-phase reducer method to prepare initial copper powder; preparing the pioneer body within initial copper powder, electrolyte, little reducer and water; placing the pioneer body in the alkaline and weak reducer environment; proceeding hot water disposal at 120-300 deg C for 30 min-48 h; drying in the vacuum; producing the metal copper powder through cleaning by centrifugal separation, deionized water and anhydrous alcohol with aza ribavirin. The invention displays more even grain size distribution with higher sphericity and oxidation resistance property, which reduces the making cost. |