As　a　matrix　for　Sc-type　impregnated　cathode,　scandia　doped　tungsten　with　a　uniform　distribution　of　Sc2O3　was　obtained　by　powder　metallurgy　combined　with　the　liquid-solid　doping　method.　ne　microstructure　and　composition　of　the　powder　and　the　anti-ion　bombardment　behavior　of　scandium　in　the　matrix　were　studied　by　means　of　SEM,　EDS,　XRD,　and　in-situ　AES　methods.　Tungsten　powder　covered　with　scandium　oxide,　an　ideal　scandium　oxide-doped　tungsten　powder　for　the　preparation　of　Sc-type　impregnated　cathode,　was　obtained　using　the　liquid-solid　doping　method.　Compared　with　the　matrix　prepared　with　the　mechanically　mixed　powder　of　tungsten　and　scandium　oxide,　Sc2O3-W　matrix　prepared　with　this　kind　of　powder　had　smaller　grain　size　and　uniform　distribution　of　scandium.　Sc　on　the　surface　of　Sc2O3　doped　tungsten　matrix　had　good　high　temperature　stability　and　good　anti-ion　bombardment　capability.