In order to clarify the relationship between activated slip systems and orientations of recrystallized grains, deformation bands and recrystallized grains in aluminum single crystals were examined. Consequently, it was considered that the nucleation of the recrystallized grains occurred in the regions surrounded by two or three groups of dislocation loops with their common cross slip planes in and near the deformation bands. The growth rate of the recrystallized grains was larger on the direction parallel than that normal to the deformation bands.