A method of aerodynanic banded shot peen forming is proposed to form large wing skin panels with complex profile．The panel is integral subdividing into bands and subregions in band to carry out shot peen forming according to the contour curvature and thickness distribution．The shot peen forming paramenters are detemined by fundamental experiments with panel specimens，the geometric model of panel blank is obtained with optimized feature mapping method，and the shot peen forming deformation amount is increased with  prestress method．The above-mentioned banded shot peen forming method is applied in the large supercritical wing skin panels of ARJ21．