With the rapid development of electronic information industry, surface mount technology (SMT) as a new generation of assembly technology, has been gradually replacing the traditional through-hole technology has become the main technological means of modern electronic products PCB circuit module interconnection. The PCB placement machine is a high-tech product which integrates motion control and machine vision, and is the key equipment of the whole SMT production line. The surface mount technology of the earliest development of Japan and then the rapid development of Europe and the United States holds the leading technology in the industry, Chinese has become the world's largest SMT application of power, but in the technology still lags behind Japan and other manufacturing power. This paper discusses the technology to shrinking the size of components, miniaturization, integration and high reliability direction with automatic placement machine, the high density assembly and efficient automated production has been a difficult patch technology, surface group to learn perfect technology to enrich their technology to move towards manufacturing power is represent the general trend.