The invention discloses an electric cabinet-incoming method for a multifunctional electricity-verification and grounding trolley for centrally installed switchgear. An earthing switch is in a switch-off position; a travel switch S1 is switched on; the trolley is positioned in a test position; a travel switch S9 is switched on; a button SB3 cabinet-incoming button is pressed; a contactor KM3 coil is powered on; a contactor main contact is switched on; a motor M2 is powered on; the trolley begins to move to the cabinet in a rocking manner; at the moment, the button SB3 is released; the contactor is self-held through a KM3 auxiliary contact; when the trolley arrives at an operating position, the travel switch S9 is switched off; the contactor KM3 coil is in a power-losing state; the main contact is disconnected; the motor M2 stops operating; and the cabinet-incoming operation is finished. The electric cabinet-incoming method is convenient and safe to operate.