Tungsten-rhenium　mixed　powders　were　prepared　by　a　spray　drying　method　followed　by　two-step　reduction　process.　The　reduction　process　and　sintering　behavior　of　the　W-Re　powders　and　the　DC　emission　properties　of　the　W-Re　mixed　matrix　dispenser　cathodes　have　been　studied.　Porous　microstructure　for　the　W-Re　mixed　powders　was　developed　during　the　hydrogen　reduction　process.　With　the　increase　of　the　rhenium　content　in　the　W-Re　powders,　the　grain　size　of　the　matrix　decreased　dramatically　and　the　sintering　temperature　has　to　be　increased　correspondingly　in　order　to　obtain　appropriate　apparent　porosity.　W-75at%Re　mixed　matrix　cathode　demonstrates　the　highest　electron　emission　among　the　W-Re　mixed　cathodes　studied,　with　direct　current　density　reaching　10.73　A/cm(2)　at　a　temperature　of　1　000　degrees　C.