Abstract
Fieldbus technology is the forefront technology of digital communication in contemporary industry. It is the integration of computer technology, communication technology and automation control technology. It is also the embodiment of information technology and measurement technology in the information age. Fieldbus technology is a pioneer in the era of industrial digital communications, and its emergence is causing an unprecedented technologi- cal revolution in the field of industrial control. In the future development of fieldbus technology, China should combine the actual situation of social development, establish a long-term development goals, and humbly learn from the advanced countries of the world’s advanced experience, access to foreign countries advanced technology and information to master the maturity of foreign development technology. Based on this paper, the technical structure and development trend of fieldbus are analyzed.