With more and more strict environmental requirements, copper smelting industries are facing severe challenge. Flash smelting, one of the most competitive smelting technologies in the world, is considered as a standard and clean copper production method. At present, 50% of the global blister copper is produced by such technology. Due to its well meeting with the general trend of sustainable development strategy, flash smelting is widely introduced to most newly built smelters and smelting expansion projects. This article gives general introduction of the specialty of flash smelting technology and its following development. It also describes the current situation of copper industry in China and suggests the development tendencies.