The invention discloses a driving device for a two-step action type ground switch. A sector plate is embedded in a groove of a sliding block and is for guiding actions; when a cross arm shaft rotates, the sliding block fixed on a clamping plate can slide on a round edge of the sector plate through the linkage of a connecting lever I and a connecting lever II so that a contact tube of the ground switch performs rotary motions by taking the cross arm shaft as a rotating center in a vertical plane first; after the contact tube rotates for 90 degrees, the sliding block slides upward on a straight line edge of the sector plate so that the contact tube of the ground switch performs straight line ascending motions in the vertical plane; a contact head is inserted in a sensing finger; and when the switch is switched on in place, the contact tube of the ground switch stops moving, and the switching off process is in the other way round. The driving device can ensure that two-step actions of the two-step action type ground switch smooth and reliable and have small switching on and off impacts, and has the advantages of simple structure, convenient operation, flexible transmission, safety and durability.