Recent researches of high Zn content (the mass fraction is not less than 7%) Al-Zn-Mg-Cu alloys were summarized, and recent status of the heat treatment technology (homogenization treatment, solid solution treatment, aging treatment, and thermo-mechanical treatment) of high Zn content Al-Zn-Mg-Cu alloys were introduced. The mechanism and influences of different heat treatment techniques on the microstructure and properties of high Zn content Al-Zn-Mg-Cu alloy were elucidated, and the development trend and the outlook of high Zn content Al-Zn-Mg-Cu alloy were prospected. It was expected to provide reference for the comprehensive performance improvements in Al-Zn-Mg-Cu alloys and the sustainable development of the aluminum alloy industry.