Different　characteristic　features　of　scandate-type　cathode　with　sub-micron　structure　Sc2O3　doped　tungsten　bodies,　were　investigated.　The　scandia　doped　tungsten　powders　were　made　by　using　liquid-solid　doping　and　liquid-liquid　doping.　The　doped　tungsten　powders　were　pressed　and　sintered　into　porous　bodies　and　then　impregnated　with　411　barium　calcium　aluminates.　The　result　shows　that　improved　pressing,　sintering　and　impregnating　procedures　help　to　obtain　scandate　cathodes　with　sub-micron　framework　porous　bodies.