The utility model provides a combined 6 to 20 kV electric isolating switch and a grounding switch. The isolating switch comprises a static contact, a moving contact, an elastic operating mechanism, a rotating shaft, a pull rod insulator, a supporting insulator and an angle iron framework; the grounding switch shares the moving contact, the elastic operating mechanism, the rotating shaft and the pull rod insulator with the isolating switch, and also comprises a static contact and an angle iron framework; the static contact of the grounding switch is installed on the angle iron framework; a static contact framework of the grounding switch is fixedly arranged on the angle iron framework of the isolating switch; and a grounding hole is formed in the angle iron framework. The utility model adopts equipment applied to the isolating switch of close and open circuits in a power system medium-voltage distribution network and the grounding switch, and has electric and manual operation modes; the application of the utility model can improve the power supply reliability and also reduce the labor intensity of employees, simultaneously avoids unsafe factors in terms of electric misoperation and traffic, and improves urban distribution network automatization and transformer substation automatization to a new technical level.