Abstract: BIM (Building Information Modeling) is accelerating the construction sector to other engineering fields.. Its integrated engineering design, construction and management philosophy to make the technology more and more attention and recognition. Currently, intelligent open pit engineering BIM technology is still in trial stage exploration. Compared with the traditional engineering, the intelligent open-pit mine project has the characteristics of obvious professional intersection, high level of information integration, and huge data volume, so it is urgent to establish a set of information classification and coding standards suitable for it. In order to apply BIM technology to open-pit mine engineering, this paper studies the engineering information classification and coding standard of intelligent open-pit mine comprehensively considering the engineering characteristics. Based on this standard, combined with the different needs of the whole life cycle, the whole engineering field and all participants of intelligent open-pit mine project, the author compiled a total of 22 classification tables, including "building by function, building elements by form, work achievements and behavior". This table provides necessary preconditions to clarify the process of information transmission in order to realize intelligent open-pit project based on BIM, consolidate the BIM model digital unified standard delivery of open pit project foundation, follow up research and development of the construction of the intelligent open pit mine.