The traditional port & waterway engineering technology system is insufficient to support the operation of survey and design companies using BIM as its working method.Taking a port & waterway engineering survey and design company as a study case,we probe into the standards,key technologies,platforms and software,human resources,supporting management systems,and project applications and propose a BIM technical system applicable to the port & waterway engineering,which may be used as a reference system for domestic and international port & waterway engineering survey and design companies.