The effects of cold deformation treatment on solution microstructures and properties of a new designed Al-13.01Zn-3.16Mg-2.8Cu-0.204Zr-0.0757Sr alloy extrusions were investigated by tensile, hardness tests, XRD and EBSD analysis, inter-granular and exfoliation corrosion resistance experiments. The results show that compared to the traditional solution - aging, The average grain size decreases, the hardness, conductivity, low-angle grain boundaries ratio, tensile and yield strength increases, and corrosion resistance becomes better of the alloy under solution-compression-aging. Wherein the hardness, conductivity, yield, tensile strength reached 243.0 HV, 25.085% IACS, 734.7 MPa and 683.2 MPa, elongation of 6.1% and intergranular corrosion depth of 23.81 um, intergranular corrosion rate 2 of the alloy under the solution- compression - aging (100 ℃×24 h).