Abstract: The development of high-performance copper base elastic alloy for replacing beryllium copper alloy is the focus of beryllium copper alloy industries. Recent advances in high-performance copper base elastic alloy, such as Cu-Ti, Cu-Ni-Sn, CuNi-Cr, Cu-Ni-Mn, Cu-Ni-Al base alloys, have been summarized. The gap of development and applications of high-performance copper base elastic alloy for replacing beryllium copper alloy between China and developed countries have also been pinpointed.