In　order　to　improve　the　cycle　performance　of　lithium　sulphur　battery,　chemical　precipitation　was　adopted　to　prepare　FeS　immobilized　mesoporous　carbon　(MC)　composites　FeS/MC.　S　immobilized　MC　composites　S/MC　and　S-FeS　immobilized　composites　S-FeS/MC　were　prepared　by　hot　mixing.　The　SEM　photographs　show　that　holes　on　the　surface　of　MC　are　filled　by　FeS;　N2　adsorption-desorption　isotherms　indicate　that　after　the　immobilization　of　FeS,　the　specific　area　of　MC　decreases　greatly,　while　the　average　diameter　of　holes　increases.　XRD　patterns　show　that　when　the　content　of　immobilized　FeS　reaches　20wt%,　Fe3S4　phase　appears.　Electrochemical　test　results　show　that　although　FeS　immobilized　in　MC　shows　no　electrochemical　activity,　it　has　catalytic　effect　in　the　redox　process　of　polysulfides,　thus　enhances　the　reversibility　of　cathode.　The　retention　rate　of　2nd　specific　discharge　capacity　of　S-FeS/MC　is　higher　than　that　of　S/MC,　and　shows　the　lighter　“shuttle　effect”.　2nd　specific　discharge　capacity　of　S-FeS/MC　is　1　108.8　mA·h/g,　and　the　capacity　retention　rate　after　50　cycles　is　43.7%,　which　is　higher　than　the　capacity　retention　of　S/MC,　and　shows　superior　cycle　performance.　©,　2015,　Beijing　University　of　Aeronautics　and　Astronautics　(BUAA).　All　right　reserved.