The utility model relates to an electronic -type current -voltage -combined transformer for GIS (gas insulated switchgear), including pressure vessel, in the pressure vessel from interior to exterior in proper order the coaxial line be provided with a partial conductor, suspension electrode and the first metal layer, the first metal layer includes two at least insulating low -field electrodes each other, is provided with the insulating cylinder between each low -field electrode and the suspension electrode, the periphery of each low -field electrode expose in in the pressure vessel, has the space that is used for filling the insulating gas between each low -field electrode and the pressure vessel. The utility model provides a need set up special -shaped insulator among the prior art and lead to the problem that whole current -voltage combined mutual inductor structure is complicated.