To speed up the construction of dry bulk cargo smart ports,the application of digital twin technology in dry bulk cargo terminals is discussed.This paper analyzes the development trend of automation,information and intelligence in the operation of dry bulk cargo terminals,and points out the current challenges such as explosive growth of data,incomplete data collection.On this basis,the application fields of digital twin in port are analyzed and sorted out,and seven application business fields are proposed based on the content of digital twin model.Centering on the construction route of digital twin in dry bulk cargo terminal,a method of digital twin model construction with data-driven and model-driven as the core is proposed.Combined with the current situation of intelligent construction of dry bulk cargo terminal,the digital twin platform architecture of dry bulk cargo terminal is proposed.This paper selects typical door machine equipment and global typical cases in the port, and elaborates on the practical experience of application,from the micro devices twin build and macro global twin scenario two aspects,so as to provide reference for smart ports development and construction.