Co-rich　skutterudite　compounds　of　FexCo4-xSb12(x=0-1.0)　were　synthesized　by　spark　plasma　sintering　(SPS)　at　800-1000　K,　and　the　structure,　morphologies　and　thermoelectric　properties　of　the　compounds　were　studied.　The　lattice　constant　increased　linearly　with　increasing　Fe　content,　and　electric　conductivity　increased　with　increasing　substitution　of　Fe　for　Co　sites,　while　the　highest　value　of　Seebeck　coefficient　shifted　towards　high　temperature　range　and　thermal　conductivity　further　decreased　with　increasing　Fe　content.　For　Co-rich　skutterudite　compounds　of　FexCo4-xSb12,　the　compound　of　Fe1.0Co3.0Sb12　had　a　higher　thermoelectric　property　and　the　maximum　value　of　the　dimensionless　figure　of　merit　ZT　of　0.30　was　achieved　at　673　K.