The invention provides a drying method of metal powder. The method comprises the following steps that 1, the metal powder to be dried is treated with low-boiling-point solvent and/or volatile solvent; 2, a product obtained in the first step is dried in a vacuum or non-oxidation atmosphere, wherein the drying temperature ranges from 55 DEG C to 85 DEG C. By means of the drying method, the metal powder with the low oxygen content can be prepared, and the powder has the better electrical property or processing property.