Abstract: Layered structure LiNi1/3Co1/3Mn1/3O2 composite compound is considered as a promising candidate of new-generation cathode materials to replace LiCoO2 for rechargeable lithium ion batteries due to its higher capacity，longer cycle life，lower cost and no harm to environment. The structure characteristics of LiNi1/3Co1/3Mn1/3O2 and its electrochemistry properties were introduced. And then the synthesis methods this kind of cathode materials for lithium ion batteries were summarized. Anion ion doping，cation ion doping，complex ions and surface modification for cathode materials were discussed. Some problems in this cathode material research and development were presented，the and its future trend of lithium ion batteries cathode materials was forecasted.