To　enhance　the　conductivity　of　a　silver　nanowire　(Ag　NW)　network,　a　facile　solvent　welding　method　was　developed.　Soaking　a　Ag　NW　network　in　ethylene　glycol　(EG)　or　alcohol　for　less　than　15　min　decreased　the　resistance　about　70%.　Further　combined　solvent　processing　via　a　plasmonic　welding　approach　decreased　the　resistance　about　85%.　This　was　achieved　by　simply　exposing　the　EG-soaked　Ag　NW　network　to　a　low-power　blue　light　(60　mW/cm2).　Research　results　suggest　that　poly(vinylpyrrolidone)　(PVP)　dissolution　by　solvent　brings　nanowires　into　closer　contact,　and　this　reduced　gap　distance　between　nanowires　enhances　the　plasmonic　welding　effect,　hence　further　decreasing　resistance.　Aside　from　this　dual　combination　of　methods,　a　triple　combination　with　Joule　heating　welding　induced　by　applying　a　current　to　the　Ag　NW　network　decreased　the　resistance　about　96%.　Although　conductivity　was　significantly　enhanced,　our　results　showed　that　the　melting　at　Ag　NW　junctions　was　relatively　negligible,　which　indicates　that　the　enhancement　in　conductivity　could　be　attributed　to　the　removal　of　PVP　layers.　Moreover,　the　approaches　were　quite　gentle　so　any　potential　damage　to　Ag　NWs　or　polymer　substrates　by　overheating　(e.g.,　excessive　Joule　heating)　was　avoided　entirely,　making　the　approaches　suitable　for　application　in　devices　using　heat-sensitive　materials.