The feasibility of room-temperature (cold) forming of peak-aged 7075 high-strength aluminum alloy (7075-T6) sheets aftersolution heat treatment followed by water quenching was investigated. The anisotropic plastic properties of the heat-treatedaluminum sheet (7075-WT) were experimentally characterized by performing uniaxial tensile tests (along different loadingdirections) and a balanced biaxial tension test. Limit dome height (LDH) and cylindrical cup drawing experiments wereconducted to evaluate the formability at room temperature. With the obtained anisotropic mechanical properties, differentyield functions, including Yld2000-2d, Hill 1948, and von-Mises, were determined and implemented in the finite elementsimulations to numerically predict the formability at room temperature. The formability of the 7075-WT sheet at roomtemperature could be significantly enhanced owing to the prior heat treatment, and the finite element simulations performedusing the anisotropic yield functions and Voce hardening law were in good agreement with the measured LDH. The LDHof the 7075-WT sheet in the plane strain and biaxial stress modes and the earing in the circular cup drawing tests could bebetter predicted non-quadratic Yld2000-2d function than those by isotropic and Hill 1948 quadratic yield functions.