Ba-doped　electrides　(Ca1-xBax)12A7:e(-)　(0　＜=　x　＜=　0.05)　bulk　was　rapidly　prepared　by　high-temperature　solid-phase　reaction　combined　with　spark　plasma　sintering,　and　the　preparation　time　was　shortened　to　about　3　h.　The　electrical　transport　properties　were　tested　at　room　temperature.　The　results　show　that　Ba　doping　is　beneficial　to　the　optimization　of　C12A7:e(-)　electric　transport　properties,　where　(Ca0.96Ba0.04)12A7:e(-)　samples　have　the　highest　conductivity　(1145　S/cm)　and　the　highest　carrier　concentration　(2.26　x　10(21)　cm(-3)).　The　carrier　concentration　increased　by　nearly　one　order　of　magnitude　compared　to　the　C12A7:e(-)　sample　prepared　under　the　same　conditions.　The　electronic　structure　of　(Ca0.96Ba0.04)12A7:e(-)　and　C12A7:e(-)　was　calculated　by　first-principles.　The　calculation　results　show　that　(Ca0.96Ba0.04)12A7:e(-)　is　lower　than　the　frame　conduction　band　of　C12A7:e(-),　and　the　density　of　states　near　the　Fermi　level　increases,　indicating　that　Ba　doping　is　beneficial　to　the　optimization　of　C12A7:e(-)　electric　transport　performance.　The　results　of　first-principles　calculation　provide　theoretical　support　for　the　experiment.