Abstract: Due to its high strength, high hardness, high plasticity, good wear resistance, corrosion resistance, high temperature softening resistance, low temperature brittle and radiation resistance, the high-entropy alloys are the new high-performance metal structural materials with the most application potential. It already becomes a hot research direction in the frontier field of national materials science. The research status of high-entropy alloys in China and abroad were introduced.The current preparation methods, microstructure characteristics, macro-performance, alloy design and computer simulation design of high-entropy alloys were summarized. Finally, the development and application prospects of high-entropy alloys were looked forward.