TEM,　DSC　and　other　techniques　were　used　to　characterize　the　heating　aging　precipitation　behavior　of　7050　aluminum　alloy　under　compression　pre-deformation　conditions,　and　the　influence　law　and　mechanism　of　pre-deformation　on　heating　aging　precipitation　were　investigated.　The　results　show　that　7050　aluminum　alloy　can　obtain　excellent　strength　and　corrosion　resistance　after　pre-deformation　heating　aging,　which　can　significantly　shorten　time　and　reduce　energy　consumption　compared　with　traditional　aging　process.　The　pre-deformation　greatly　promotes　the　aging　precipitation　of　7050　aluminum　alloy.　The　precipitate　size　increases　rapidly　as　the　increase　of　deformation　during　the　same　heating　aging　process,　and　its　size　distribution　range　increases　rapidly　too.　The　pre-deformation　during　heating　aging　process　not　only　reduces　the　phase　transformation　activation　energy　of　η＇　and　η　phases　of　7050　aluminum　alloy,　but　also　accelerates　the　diffusion　of　solute　atoms,　which　intensifies　the　Ostwald　ripening　and　promotes　the　growth　of　precipitates.　The　calculation　results　show　that　the　phase　transformation　activation　energy　of　7050　aluminum　alloy　gradually　decreases　with　the　increase　of　deformation.　When　the　deformation　amount　increases　from　0%　to　18%,　the　phase　transition　activ-ation　energy　of　η＇　and　η　phases　decreases　from　116.0　kJ/mol　to　101.7　kJ/mol　and　120.8　kJ/mol　to　107.5　kJ/mol,　respectively.　©　2020,　Journal　of　Materials　Engineering.　All　right　reserved.