Abstract: The present invention relates to a ternary-alloy metallic glass and a method for making the same, wherein the ternary-alloy metallic glass is a Cu/Zr/Ag ternary-alloy metallic glass. Comparing to the traditional metal and current conventional alloy metallic glass, the Cu/Zr/Ag ternary-alloy metallic glass performs good mechanical properties of high strength, well wear and corrosion resistance, and capable of being processed to precision instruments, machinery or components for further applying to military, high-tech products, as well as nano medical industries. Moreover, the wide supercooled liquid region of Zr-based metallic glass not only facilitates the three metals of Cu, Zr and Ag capable of being fabricated to the ternary-alloy metallic glass easily, but also makes the manufacturing process of the Cu/Zr/Ag ternary-alloy metallic glass become simple and convenient.