Abstract:In the tide of digital transformation of manufacturing industry, the value of industrial data generated by industrial process control system in enterprise production and operation management is increasing.The large-scale application of fieldbus technology is an important means to improve the digital level of industrial process control system. The foundation fieldbus technology can provide better transmission rate and stability than traditional hard wire system, which has the ability of collecting more data for production management and operation and maintenance. This paper summarized the engineering application advantages of the foundation fieldbus technology from many aspects, and also discussed the work content and relevant precautions of adopting the foundation fieldbus technology as the solution of industrial process control system in engineering design based on practical cases on an copper and cobalt beneficiation metallurgy project in Central Afica.