本发明涉及一种高强高导Cu‑Zn‑Cr‑Zr系铜合金及制备方法和应用。本发明的高强高导Cu‑Zn‑Cr‑Zr系铜合金，通过特定的成分和配比设计，使得合金具有高强度、高导电、易钎焊、易蚀刻加工的特点，可以广泛应用于大规模集成电路引线框架。本发明还提出了上述铜合金的制备方法和应用。

The present invention relates to a high-strength and high conductivity Cu Zn Cr Zr copper alloy and its preparation method and application. The high-strength and high conductivity Cu-Zn-Cr-Zr copper alloy of the present invention, through specific composition and ratio design, has the characteristics of high strength, high conductivity, easy brazing, and easy etching processing, and can be widely used in large-scale integrated circuit lead frames. The present invention also proposes a preparation method and application of the above-mentioned copper alloy.