The invention provides an electric operating device for a handcart type switch cabinet. The device includes a housing, a battery, a starting switch, a motor, a gearbox and a chuck matched with a handcart crank. The housing includes a main housing, a first handle and a second handle; the first handle and the second handle are located on the left side and the right side of the main housing correspondingly; the motor and the gearbox are positioned in the main housing; the starting switch is positioned on the second handle; after the starting switch is turned on, the motor drives the gearbox to work; and the output shaft of the gearbox drives the chuck to rotate to achieve shaking in or out of the handcart. Compared with manual shaking of a crank in the prior art, time and labor are saved whenan electric operating device shakes the crank, and fatigue operation easily occurring in multi-interval continuous operation of an operator is avoided; the first handle and the second handle are arranged, so that an operator can hold the electric operating device more stably, accidents caused by loosening of the chuck and the crank of the handcart are avoided, and the electric operating device ismore stable and reliable to use.