Smart manufacturing, its connotation is to realize the intelligence and innovation of the whole manufacturing value chain, and further promote the deep integration of information technology and industrialization. Intelligent manufacturing combines information technology, advanced manufacturing technology, automation technology and artificial intelligence technology. Smart manufacturing includes the development of intelligent products; Application of intelligent equipment; Build intelligent production lines, intelligent workshops and intelligent factories from the bottom up; Practical intelligence research and development; Forming an intelligent logistics and supply chain system; Intelligent management; Promoting smart services; Finally realize intelligent decision. At present, the "intelligence" of intelligent manufacturing is still at the level of Smart. Intelligent manufacturing system has data acquisition, data processing and data analysis capabilities, can accurately execute instructions, achieve closed-loop feedback; The trend of intelligent manufacturing is to achieve "intelligence", intelligent manufacturing system can achieve independent learning, independent decision-making and continuous optimization.