In view that the current technical methods of port spatial planning and design are difficult to meet the requirements of information and intelligent development，we discuss the innovation direction of port spatial planning and design technology based on BIM and GIS technology，and put forward the technical framework of port spatial planning and design based on BIM and GIS. Through establishing the BIM and GIS planning and design integration platform including BIM model and platform，GIS analysis model and platform，model rendering and display platform，we deeply integrate BIM model and GIS environment，realize the unification of spatial data at macro scale and information model at micro scale to implement the spatial analysis，scene analysis，auxiliary design and rendering display. The research results improve the spatial visualization and analysis ability of planning and design scheme，and provide a technical support for port planning and design under the land spatial planning system.