The development trend of miniaturization of modern energetic devices puts forward higher requirements for the energy density of pyrotechnic agents. In addition， as the concept of sustainable development is widely recognized and accepted， the toxicity of lead-containing explosives has increasingly aroused people"s concerns. For a long time， copper azide has been subject to extremely high sensitivity and therefore has not been widely used in weaponry and civilian blasting equipment. However， due to its green and high energy density characteristics， copper azide has attracted researchers" interest in recent years. The research progress of energetic materials based on copper azide in and abroad is summarized， mainly including the following perspectives： theoretical research on crystal structure level， synthesis methods of different ways， design and preparation of composite materials， practical application of microcharges and its performance test. As a kind of energetic material which has attracted attention in recent years， copper azide， has apparent advantages and disadvantages. The critical point to realize its potential application prospects lies in： theoretically grasping its crystal structure and reaction mechanism more deeply； making up for its overly sensitive defects while giving play to its advantages of high energy density from the perspective of structural design； to understand its performance parameters more systematically through experiments and simulations； developing advanced synthesis methods and charging technologies to meet the requirements of Micro-Electro-Mechanical System （MEMS） pyrotechnic devices for precise and reliable charging of energetic materials.