Sb-based　alloys　CoFe3Sb12　and　FeSb2　have　been　prepared　by　vacuum　melting　and　mechanical　alloying　process,　respectively.　Their　electrochemical　properties　were　studied　with　the　lithium　anode　model　cell　of　Li　vertical　bar　LiPF6(EC+DMC)vertical　bar　CoFe3Sb12　(or　FeSb2).　The　reversible　capacities　of　the　first　cycle　reached　485　mAh(.)g(-1)　and　394　mAh(.)g(-1)　for　CoFe3Sb12　and　FeSb2,　respectively.　It　was　demonstrated　that　the　cycle　stability　of　FeSb2　was　better　than　that　of　CoFe3Sb12.　There　were　50%　and　70%　retention　of　the　initial　capacity　at　the　tenth　cycle　for　CoFe3Sb12　and　FeSb2,　respectively.