A pole-type combined switch for high-voltage electrical equipment, wherein the combined switch for high-voltage electrical equipment comprises a pole support, embedded poles, a spring operating mechanism, and an isolated-earthing-switch operating mechanism; each of the embedded poles has a screw rod and an insulation pull rod respectively extending out of a sealed base; an upper wire-outlet rod and a lower wire-outlet rod extend out from the screw rod and the insulation pull rod, respectively; a vacuum interrupter is disposed in each embedded pole; three embedded poles are arranged in a row at the pole support; the pole support is a triangle cylinder frame; a sealed flange is provided at a hole of the pole support where a base of the embedded pole is fixed; an embedded triangular slot is provided at a side of the pole support where the sealed flange is located, the spring operating mechanism and the isolated-earthing-switch operating mechanism are disposed within the triangular slot, and output shafts of the isolated-earthing-switch operating mechanism are each connected to the screw rod of one corresponding embedded pole, wherein a mounting base plate of the spring operating mechanism is provided with an operating shaft; the operating shaft is provided with crank arms which are in pair and symmetrical; each pair of the crank arms which are in pair and symmetrical are connected to seat lugs at two sides through a shaft pin; each seat lug is provided with a lug slide hole; the insulation pull rods of the embedded poles respectively extend out of limiting holes each formed between the shaft pin and the symmetric crank arms; the isolated-earthing-switch operating mechanism is provided within the triangular slot of the pole support by the mounting base plate of the spring operating mechanism; the isolated-earthing-switch operating mechanism is disposed at an upper part of the mounting base plate of the spring operating mechanism; the spring operating mechanism and the isolated-earthing-switch operating mechanism are connected to form one piece through a door interlocking member and a mechanism interlocking member; the door interlocking member is provided with a plate slide hole at a location where the door interlocking member is connected with the spring operating mechanism and the isolated-earthing-switch operating mechanism; a tension spring that is pulled upward is disposed at an inner side of a portion of the door interlocking member where a tension spring pin is located; one end of the door interlocking member is located at an operation hole of a rocking handle of the isolated-earthing-switch operating mechanism, and the other end of the door interlocking member is located at a close-brake-half-shaft pinch plate of the spring operating mechanism; a turnable interlocking member is disposed at an end of the close-brake-half-shaft pinch plate of the door interlocking member; an outer-edge bump of one side of the turnable interlocking member is abutted against the door interlocking member; an outer edge of the turnable interlocking member is provided with a raised knob; and the outer-edge bump of the turnable interlocking member drives the door interlocking member to move upward by being abutted against the door interlocking member.