The invention relates to the field of metal material machining, and particularly provides a cleaning technology of a metal workpiece, and the metal workpiece obtained through cleaning. The cleaning technology of the metal workpiece comprises the following step that a water system cleaning machine and a hydrocarbon solvent cleaning machine are adopted to clean the metal workpiece. According to thecleaning technology of the metal workpiece, the water system cleaning machine and the hydrocarbon solvent cleaning machine are adopted jointly to clean the metal workpiece, oil, grease and other impurities (such as a residual cutting fluid, a coolant, and quenching oil on the workpiece surface) on the workpiece surface can be effectively removed, the cleaning effect is good, and cleaning stabilityis high; in the cleaning process, manual hand cleaning is not required to be used, the cleaning efficiency is high, and the cleaning technology is suitable for mass production; and cleaning for the metal workpieces with various sizes can be achieved, and the application range is wide.