Abstract: High-entropy alloys generally have excellent physical properties, high strength, high hardness, strong corrosion resistance and magnetic and electrochemical properties, which is a research hotspot in recent years. The progress and related problems in the research and development of FeCoMnNi-based high-entropy alloys in the past 3 years were summarized, and the future applications and development of treatment process effect factors and propertes of high-entropy alloy materials were predicted.