To learn the progress of nanometer technology applying in energetic materials,the research and application technologies of many kinds of nanometer energetic materials were summarized systematic.And those nanometer materials widely applied in energetic materials were discussed,such as nanometer high energetic oxidant,nanometer high energetic metal powder and nanometer catalysts.Based on the discussion,a conclusion was reached that improving the dispersity of nanometer particles was the key point to prepare high properties nanometer energetic materials.