The invention provides a multi-dimensional graphical display method based on virtual connection between all devices of a smart substation SCD. The multi-dimensional graphical display method abides by the human thinking habit of being from the macro view to the micro view. The multi-dimensional graphical display method comprises the steps that virtual connection between all IEDs in the SCD are read; a corresponding input virtual terminal description, an internal virtual terminal description, a sending source and other types of information are searched for; a concept of macro connection is put forward to express a set of related virtual connection, coming from the same sending source (same source) and sent to the same receiving logic LD (same receiver), between every two devices; a data chain table of the macro connection, the sending end device and the receiving end device of each receiving IED is constructed; a macro main graph and four subgraphs are constructed and drawn by means of the graphical display technology. According to the multi-dimensional graphical display method, a user can quickly, visually and accurately acquire and check information of all virtual terminals of each device, the problems that traditional manual search is complex, low in efficiency, prone to errors and omission and the like are solved, and working efficiency and accuracy of debugging and maintenance of a smart substation are greatly improved.