With　the　improvement　of　guidance　precision　and　penetration　capability　of　missile　weapons,　multiple　internal　explosions　have　gradually　become　an　important　form　of　attacking　buildings.　Shear　wall　is　an　important　structural　component　in　buildings,　and　its　damage　mechanism　and　failure　mode　need　to　be　further　studied　under　internal　explosions.　In　order　to　reproduce　the　constraint　conditions　and　load　scenarios　of　shear　wall,　a　1　/　3　scaled　reinforced　concrete　structure　was　used　to　conduct　multiple　internal　explosion　tests　with　different　TNT　charge　masses.　By　analyzing　the　crack　pattern,　damage　level　and　mid-span　displacement　of　structure　component,　the　influence　of　internal　explosion　strength　and　loading　times　on　the　failure　mode　and　damage　level　of　the　shear　wall　is　studied.　The　results　indicated　that　when　the　internal　explosive　load　is　small,　the　failure　mode　of　shear　wall　would　change　from　bending　to　bending-shear.　However,　when　the　internal　explosive　load　is　large,　the　failure　mode　of　shear　wall　would　change　from　bending-shear　to　complete　shear.　Under　the　multiple　explosive　loading　scenarios,　the　deformation　resistance　of　shear　wall　with　initial　mild　damage　is　larger　than　that　of　the　shear　wall　without　initial　damage.　On　the　other　hand,　the　deformation　resistance　of　shear　wall　with　the　initial　moderate　or　higher-level　damage　is　lower　than　that　of　the　shear　wall　without　initial　damage.　Therefore,　the　correlation　between　multiple　damages　should　be　considered　in　order　to　evaluate　the　cumulative　damage　of　shear　wall　component.　©　2023　China　Ordnance　Industry　Corporation.　All　rights　reserved.