The utility model relates to a GIS (geographic information system) suspension structure electronic current-voltage combined transformer. Based on the existing GIS transformer, a suspension electric potential cylinder which is coaxial with a primary conductor is fixed on a pressure container in an insulating manner, the outer wall of the suspension electric potential cylinder is coated with a copper foil layer, and an insulating medium layer is arranged between the suspension electrical potential cylinder and the copper foil layer. The GIS suspension structure electronic current-voltage combined transformer provided by the utility model has the advantages of compact structure, high insulating strength and is improved on the basis of the existing transformer; and the coaxial capacitors can be arranged outwards gradually from the primary conductor, the insulating property is high, the reliability and the stability are enhanced, and current and voltage are simultaneously detected, the structure is compact, the accuracy is high, and the cost is greatly reduced.