综述了国内外以发光二极管为光源的光疗法在生物医学中的应用研究，主要从动物体试验，动物细胞实验和医学临床进行了分析，对医学临床进行了重点的分析研究。并从安全性、经济性、使用性等多方面比较分析了发光二极管光源疗法与其它光源疗法的优缺点。发光二极管光源疗法将在生物医学领域有广阔的应用，在产品商业化上也会有较大的发展。

The application of light emitting diode(LED)therapy in biology and medicine is summarized,which focuses on the experiments in animal model,animal cells and clinical research. The advantages and disadvantages of LED therapy are compared with those of the other light sources in the view of safety,reliability and low cast. It can be sure that LED therapy must have a wide foreground in biology,medicine and commercial products.