Abstract: Provided is a 6xxx-series aluminum sheet having high formability for automotive body panel use, which can be produced without significant changes in conventional chemical compositions and production conditions. The 6xxx-series aluminum alloy sheet is controlled in its microstructure as follows. The average grain size of the microstructure is controlled to be small; and the average proportion of small angle grain boundaries after application of tensile deformation to the sheet is controlled at two levels in a low strain region and a high strain region according to the levels of strain imparted by the tensile deformation. This restrains heterogeneous deformation from the high strain region leading to rupture upon press forming into an automotive body panel, and allows the sheet to offer good work hardening properties and to have high formability.