The AC/DC hybrid power grid has already been built in China,which uses Ultra-High Voltage (UHV) grid as its backbone.Operation modes of power grid become more complex and diverse.The requirement for online analysis and visualization of dispatching operation will be much higher.From the view of electrical distance,this paper proposes a new method to represent the closeness degree of power equipment,which maps the high-dimensional and complicated relations of electrical distances into 2D images by using t-SNE (t-distribution stochastic neighbor embedding) algorithm,and gives dispatcher more intuitive impressions.The validation is verified by taking the actual data of power grid as an example,indicating the method can represent the variety of grid rapidly and meet online application.