The production process of Engraved custom challenge coins electroplating and coloring the coins. Electroplating the coins according to customer requirements, and then color the coins according to customer requirements, finish the color, and bake at high temperature to enhance the colorfastness. Through this step, a complete coins meeting the customer's requirements is produced. Engraved custom challenge coins production process package the produced coins according to customer requirements. The packaging is generally divided into ordinary packaging and high-end packaging such as velvet boxes.