The　polycrystalline　(SmxBa1-x)B-6　(x=0.2,　0.6,　0.8)　bulk　cathodes　were　synthesized　by　arc　plasma　and　spark　plasma　sintering　(SPS).　The　phase,　crystal　structure　and　grain　orientations　of　sintered　bodies　were　investigated　with　XRD　and　EBSD,　and　the　partial　properties　were　tested.　The　results　indicate　that　the　(SmxBa1-x)B-6　with　high-purity　prepared　by　SPS　are　random　substitution　solid　solutions　which　exhibit　a　single　phase　structure.　The　lattice　parameters　increase　with　the　increase　of　Ba　content.　The　(SmxBa1-x)B-6　sintered　bodies　with　a　fine　grain　structure　have　high-density　and　excellent　mechanical　properties.　The　(Sm0.2Ba0.8)B-6　and　(Sm0.8Ba0.2)B-6　MPa　and　1400　degrees　C　for　5　min　form　some　fiber　textures　which　will　enhance　the　emitting　property.