Abstract: Based on the research and application of Alq₃, the comprehensive experiment adopted different testing technologies to study the photoluminescence and electroluminescence of Alq₃. Firstly, we compared the photoluminescence properties of Alq₃ in solution and thin film state. Secondly, we built the LED devices with multi-layer structure and explored the electroluminescent characteristics of Alq₃. The proposed comprehensive experiment transforms research methods and results into experimental teaching content. As such, students can fully understand the luminescent mechanism and properties of organic luminescent materials, while mastering the techniques of making thin film devices and the corresponding testing technology of photoelectric properties.