Dendritic transition metal catalysts are transition metal active centers loaded on dendritic macromolecular. Therefore, these catalysts not only have the unique artistic structure of dendrimers, but also have the functional performance of transition metal complexes, so that they can work together, and have the characteristics of homogeneous and heterogeneous catalytic systems, It has high catalytic activity and good catalytic stability in catalytic olefin polymerization. It has attracted much attention in recent years, and catalytic ethylene polymerization is one of the research hotspots. This paper is classified by their transition metal active center and summarizes the progress of dendritic transition metal catalysts in this ethylene polymerization at home and abroad in recent years, expounds the causes of various dendritic effects, and looks forward to the development prospect of dendritic transition metal catalysts for ethylene polymerization