With　the　resistance　to　stress　corrosion　of　the　base　metal　as　a　reference,　the　contrast　result　of　stress　corrosion　cracking　(SCC)　susceptibility　of　aluminum-copper　alloy　2219　and　2014　welded　joints　under　different　welding　processes　(VP-TIG　welding,　HF-TIG　hybrid　welding,　laser-TIG　hybrid　welding　and　laser　HF-TIG　hybrid　welding)　is　obtained　via　the　slow　strain　rate　testing　(SSRT),　scanning　electron　microscope　(SEM)　and　microstructure　observation　auxiliary　technologies.　Test　results　show　that　the　joints　of　aluminum　alloy　2219,　welded　by　hybrid　welding　processes,　have　superior　resistance　to　stress　corrosion　compared　to　those　welded　by　the　VP-TIG　welding　process　in　varying　degrees,　especially,　the　joint　welded　by　the　laser　HF-TIG　hybrid　welding　process,　where　the　resistance　to　stress　corrosion　is　almost　the　same　as　that　of　the　base　material.　However,　the　HF　or　laser　hybrid　welding　effect　is　not　significant　under　the　same　welding　conditions　for　welded　joints　of　aluminum　alloy　2014.　©2011　Editorial　Board　of　CHINA　WELDING.