In　order　to　stabilize　the　structure　of　spinal　LiMn2O4　and　improve　its　electrochemistry　performance,　a　series　of　Li-ion　battery　cathode　materials　LiCoxNixMn2-2xO4-x　Fx　(multi-doped　by　Co3+,　Ni3+,　F-)　were　prepared　through　co-precipitation　technique,　adulterating　both　Co3+　and　Ni2+　ions　and　meantime　introducing　F-.　The　result　of　XRD　indicated　that　it　kept　the　origin　spinal　structure.　At　a　current　density　of　100　mA/g　LiCo0.05Ni0.05Mn1.9O4-x　Fx　exhibited　a　discharge　capacity　of　83.04　mAh/g　in　the　voltage　range　of　3.2-4.4V　with　a　slight　capacity　fade　up　to　30　circles　(0.18%　per　circle).