A gate driving circuit that drives a gate of a main switching device is provided, where the gate driving circuit includes: a first resistor connected between a first potential and the gate of the main switching device; a second resistor connected between a second potential being lower than the first potential and the gate of the main switching device; a first switching device connected in series with the first resistor between the first potential and the gate of the main switching device; a second switching device connected in series with the second resistor between the second potential and the gate of the main switching device; and a control circuit that changes at least one resistance value of a resistance value of the first resistor and a resistance value of the second resistor according to a length of an ON period during which the main switching device is turned on.