Aluminum　alloy　and　stainless　steel　composite　structure　have　been　widely　used　in　the　chemical　industry.　Aluminum　alloy　and　stainless　steel　are　difficult　to　weld　by　fusion　weld　method　because　of　differences　in　physical　and　chemical　properties.　Joints　of　aluminum　alloy　5A06　and　0Cr18Ni10Ti　stainless　steel　with　good　mechanical　properties　were　created　using　vaporizing　foil　actuator　welding　with　an　interlayer.　The　interlayer　was　welded　to　both　the　target　and　the　flyer　on　a　ring-shaped　welded　area.　The　influences　of　the　input　energy　on　the　time　of　the　occurrence　of　vaporization　and　mechanical　properties　of　the　joints　were　analyzed.　Single　collection　system　and　photonic　Doppler　velocimetry　system　were　used　to　analyze　the　burst　time,　discharge　current　and　voltage　changes　with　energy　input　increased,　and　microstructure　and　element　distribution　were　analyzed　by　OM　and　SEM　with　EDS.　The　results　show　that　as　the　input　energy　increases,　the　vaporization　of　the　foil　occurred　earlier　and　achieved　higher　impact　velocity,　resulting　in　a　larger　diameter　of　the　welded　area.　The　peak　tensile　load　and　shear　load　were　increased　with　energy　input　increased,　the　peak　tensile　load　is　44.0　kN　and　peak　shear　load　is　2.1　kN　with　9　kJ　energy　input.　The　Al3003　was　joint　to　5A06　in　symmetric　wavy　pattern　and　joint　with　0Cr18Ni10Ti　stainless　steel　by　intermetallic　compounds.　The　joining　areas　were　not　aligned.