Abstract: A connector with a voltage protection function is to be electrically connected to a power supply device which provides a plurality of power voltages. The connector includes a main body, a plurality of pins and a voltage protection circuit module. The pins disposed on the main body are connected to the power voltages provided by the power supply device. The voltage protection circuit module includes a plurality of input terminals electrically connected to the power voltages. When a value of one of the power voltages exceeds a predetermined range, the voltage protection circuit module grounds at least one of the power voltages.