The　influence　of　three　kinds　of　Re　elements　and　Re　metal　mixture　on　the　oxygen,　nitrogen　content　and　proc　sensitivity　in　the　weld　of　self-shielded　flux-cored　wire　was　investigated　in　the　present　study.　Significant　findings　of　this　study　revealed　that　the　oxygen　content　and　pore　sensitivity　in　the　weld　were　reduced　with　the　increase　of　Re　element　addition,　among　which　the　Re　metal　mixture　most　effectively　depressed　the　formation　of　porosity.　The　effect　of　Re　element　addition　on　the　nitrogen　content　in　the　weld　was　insignificant　due　to　the　oxidization　from　the　early　deoxidization　stage.　However,　the　Re　elements　could　effectively　fix　the　nitrogen　so　that　the　nitrogen　content　in　the　weld　could　be　controlled　to　certain　beneficial　ranges.　It　was　also　found　out　that　proper　Re　element　addition　could　increase　the　toughness　of　the　weld　metal　and　improve　its　microstructure　by　grain　refinement.