Welding　residual　stresses　usually　have　some　negative　effects　on　mechanical　properties　of　the　welded　structure.　A　multi　electron　beam　heating　method　was　proposed　to　modify　the　residual　stress　of　the　weld.　A　finite　element　model　was　established　to　analyze　the　welding　transient　temperature　and　residual　stress　evolution　in　the　multi　electron　beam　joint　of　titanium　alloy.　The　computed　results　were　validated　by　the　measurement　using　blind　hole　drilling　method.　The　residual　stress　evolutions　during　the　multi　electron　beam　welding　and　heating　were　analyzed　to　explain　the　residual　stress　modification.　The　effects　of　multi　beam　shape　and　heating　group　offset　on　residual　stress　distribution　were　discussed　based　on　the　established　numerical　model.