Abstract: The present paper reviews the properties，synthesis methods and application of hyperbranched polymers. Synthesis reactions of hyperbranched polymers include polycondensation，active polymerization，ion polymerization and ring opening polymerization. New synthesis methods，including reversible addition fragmentation chain transfer polymerization and self-condensing group transfer polymerization are also reviewed.The polymers have good application prospects in coating，blending modification，polymeric membrane，medicine，nanophase composite material，polyelectrolyte and hyperbranched liquid crystal. The future study of such polymers is discussed.