Abstract: Suspensions of metal powders or clu sters can easily be obtained by reduction of metallic salts with various reducing reagents.In this paper,the nanoscale nickel powders were prepared in the pre-sence of diethyleneglycol,which ac ted as reaction medium and reducing reagent at the suitable temperature.The results show that the obtained nickel particles are 50nm indiameter,and with narrow size distribution.The metallic nic kel is of face-center-cubic structu re.And the specificarea of the particles is 13.48m²·g^-1.Moreover,the product is stable below 300℃ in the air.