The　recrystallization　behavior　of　Al-6Mg-0.4Mn-0.15Zr-xSc　(x　=　0.04,　0.07,　0.10　wt%)　alloys　was　studied　using　micro-hardness　test,　optical　microscopy　and　transmission　electron　microscopy　(TEM).　The　optical　micrographs　of　the　alloys　with　different　Sc　contents　after　being　annealed　at　100-550　degrees　C　for　1　h　showed　that　the　recrystallized　nucleus　formed　between　275　and　325　degrees　C　at　the　original　grain　boundaries,　and　grew　quite　slowly　until　550　degrees　C　and　above,　indicating　a　250　degrees　C　large　span　of　recrystallization　starting　and　finishing　temperatures　in　the　alloys.　The　TEM　observation　showed　the　stripe　distributed　spherical　Al-3(Sc,Zr)　particles　with　phase　rich　region　and　phase　poor　region.　The　recrystallized　subgrains　with　partial　HAGBs　was　found　at　the　phase　poor　region,　but　was　pinned　at　the　boundary　of　the　phase　rich　region.　The　recrystallization　driving　and　pinning　pressures　of　the　phase　rich　regions　of　the　alloys　with　0.04　and　0.1　Sc　wt%　were　estimated　according　to　Zener　drag　mode.　The　results　indicated　an　effective　pinning　effect　of　Al-3(Sc,Zr)　particles　on　the　recrystallized　grain　at　lower　than　475　degrees　C.　The　large　span　between　recrystallization　starting　and　finishing　temperatures　could　be　attributed　to　the　stripe　distribution　of　the　Al-3(Sc,Zr)　particles.