As a thermosetting resin with excellent comprehensive performance，epoxyresin has been widely used in many fields，but it exhibits high brittleness and low fracture toughness after curing. Hexagonal boron nitride（h-BN），a nano-filler，can significantlyimprove the comprehensive performance of epoxy resin to enhance the application potential ofepoxy resin in practice. In this article，the structure，performance，preparation，modification and dispersion methods of h-BN were systematically introduced. Then the influence on thethermal，electrical，mechanical and anti-corrosion properties of epoxy resin composites usingh-BN as a nano-filler were mainly expounded. The research progress of the properties of theh-BN reinforced epoxy resin was also reviewed. And finally the development and applicationprospects of h-BN/epoxy resin composites were prospected.