Compression　test　at　elevated-temperature　of　aluminum　sheets　used　for　easy-open　can　prepared　by　different　melt-treatment　were　carried　out　with　dynamic　thermal/mechanical　simulation　experimental　technique.　And　the　feature　of　hot　deformation　microstructure　of　the　sheets　was　studied　preliminarily　by　optical　microscope　and　transmission　electron　microscopy.　The　results　show　that　the　metallurgical　quality　of　the　sheets　influences　dynamic　recrystallization.　Dendrite　net-cells　exist　in　the　sheets　prepared　without　melt-treatment　or　by　routine　melt-treatment　and　the　distribution　of　grain　size　is　non-uniform;　dynamic　recrystallization　occurs　easily　by　means　of　subgrain　merging　at　lower　temperature　in　the　sheet　prepared　by　high-efficiency　melt-treatment,　and　the　tiny　and　evenly　distributed　grains　can　be　obtained　under　the　wider　hot　deformation　condition.　It　is　the　ideal　hot　deformation　condition　that　the　sheet　prepared　by　high-efficiency　melt-treatment　is　deformed　at　573-673　K　with　the　strain　rate　of　0.1-1.0　s-1　and　the　strain　of　0.7.