The invention discloses a safe and efficient high voltage current limiting device of an electrical device, belonging to the technical field of current limiting devices. A safe and efficient high voltage current limiting device of an electrical device includes a power distribution cabinet and an integrated circuit board, a lower end of the power distribution cabinet is in fixedly connected with aninput conductor and an output conductor, the integrated circuit board is fixedly installed inside the power distribution cabinet, the input conductor and the output conductor are electrically connected to the integrated circuit board, a status indicator is fixedly installed on an upper end of the power distribution cabinet, whether a circuit of the electrical device is in a normal working state can be observed visually through the status indicator, a first disconnector, a second disconnector and a third disconnector are arranged below the status indicator, and the first disconnector, the second disconnector and the third disconnector are fixedly connected with the integrated circuit board. The safe and efficient high voltage current limiting device of the electrical device effectively solves problems that huge reactive power loss is caused by an existing design connected in a circuit in series, and that a power line cannot be maintained when the power is cut off.