The invention discloses a copper electroplating process. The copper electroplating process comprises the steps of deoiling and derusting, ultrasonic cleaning, electroplating, hydrogen removal, hydrophobic treatment, alcohol washing, water washing and blow-drying. As the two procedures of deoiling and derusting are integrated, the procedures are simplified, the cost is lowered, the efficiency is improved, and the weakly basic condition causes less environmental pollution; as the ultrasonic cleaning procedure is added, the integral pretreatment efficiency is high, and the environment-friendly and pollution-free purposes are achieved; in the electroplating process, as a cyanide-free alkali system is adopted, environmental pollution is small; hydroxyethyl acrylate, hydroxypropyl distarch phosphate, EDTA, hydroquinone and other additives are added, electroplating is performed under the conditions of appropriate current density and electroplating temperature, finally, a fully-bright, uniform, compact and no-microcrack copper coating with a relatively good binding force can be obtained, and the coating can be 10 [mu]m in thickness, excellent in wearing resistance and free of scales when rubbing for 100 times on W40 sand paper.