The invention discloses a control circuit for a multifunctional electricity-verification and grounding trolley for centrally installed switchgear. The control circuit comprises a cabinet-in/out control circuit for controlling the trolley to go in and go out of the cabinet electrically, and an electricity-verification and grounding circuit used for controlling the trolley to perform electricity-verification and grounding, and controlling an earthing switch to be electrically switched off. The control circuit is convenient and safe to operate; due to the reliable operation of the grounding trolley, safety to maintenance staff is ensured, the probability of unplanned outage can be effectively lowered, higher power supply reliability is provided for users, and economic benefit is brought for consumers indirectly, so that the social credibility and recognition degree of the power system operation can be improved consequently.