Abstract: LED is the abbreviation of light emitting diode, which is a kind of semiconductor materials that can transform electrical energy into visible light. With the improvement of LED brightness and efficiency, the die bonding materials have become one of the key technologies which are used to deal with heat management for LED. In this paper, the types, characteristics and development of LED die bonding materials developed for the performance requirements of LED packaging, especially the epoxy and silicone materials, were summarized.