The invention relates to an insulator connecting structure and GIS equipment adopting the same. The insulator connecting structure comprises shells, wherein the shells comprise flange structures; the insulator is clamped between the flange structures of the two butted shells; and at least one of the flange structures of the two shells is provided with a baffle edge that can coat the periphery of the insulator after the two shells are butted. After the two shells are butted, the baffle edge of the flange structures can coat the periphery of the insulator to form protection on the insulator, so that an external metal ring is not required, the insulation performance of the insulator is improved, and the operation reliability is improved.