Despite various aircraft power supply system,the needs for maintenance personnel capacity training require a universal experiment system that can carry out multiple aircraft power equipments.Comprehensive and universal design method and modern measurement technology,such as computer measurement,virtual instruments,etc are used in the expetriment system.The experiment system can take experiment on aircraft main power system,secondary electrical power source,power system accessories,etc.The result shows that the universal experiment has a fine and reliable performance and reach to the design requirement.