Digital twin is an emerging technology through digital modeling and simulation of the physical world,and as an important way to realize digital transformation and promote intelligent upgrading,it provides new solutions for real-time monitoring,efficiency improvement and problem prediction of smart port and waterway.In this paper,a lightweight digital twin platform ″Panorama Box″ is built by integrating BIM and GIS technologies,which has the functions of project management and scene construction from the Web terminal,and realizes zero-code operation.This paper introduces the innovations of the product from the aspects of system architecture and function design,and takes the application of Shanghai Huangpu River waterway project as an example to further elaborate the advantages and innovations of the platform in the field of smart port and waterway.