Abstract:The advances in catalysts for C4 olefin oligomerization were reviewed. The catalytic mechanisms of different catalysts for C4 olefin oligomerization were introduced. And the research and development direction of oligomerization catalysts was also discussed. It was of great significance to develop catalysts with better performance, especially to improve the activity, stability and lifetime of catalysts by designing and adjusting the microstructure and macroscopic properties of catalysts, and it would be the main research direction in the future. Meanwhile, developing the C4 olefin oligomerization process with higher resource utilization, lower investment and lower production cost were also very critical.