The construction process of automated container terminal projects is exposed to problems such as a large project volume，complex comprehensive pipeline networks underground，many cross working planes，great interference，and difficult construction management. On the basis of the project example of Berths No. 9 and 10 in the southern operation area of the Dalangping Port Area，Qinzhou Port，this paper explores the application of “BIM + smart sites” in the construction stage and excavates the application advantages of such characteristics of BIM technology as visualization，simulation，and parameterization. The results indicate that the application of BIM technology in scheme simulation and technical disclosure in the construction stage，the intelligent caisson production management system，and the intelligent site system can effectively improve the information management level of the safety，quality，schedule，and cost control in engineering construction. Thus，BIM technology can promote the transformation and upgrading of port construction to intelligence.