For improving integrate damage capacity of weapon equipment, research on detonation performance of metal power mix explosive, such as temperature and arson. Take hydroxyl terminated polybutadiene as carrier and HMX as high explosive, use nano-metal powder to replace part of AL, design the explosive formula, and analyze influence of nano metal powder on detonation performance, such as mix explosive temperature and arson. The research results show that the ignition ability is improved and duration of high temperature is increased significantly by adding nano metal powder under the same loading volume.