A photoelectric conversion device comprising: a photoelectric conversion unit including a first electrode, a second electrode, a photoelectric conversion layer configured to accumulate a signal charge and disposed between the first electrode and the second electrode, and an insulating layer disposed between the photoelectric conversion layer and the second electrode; an amplification unit electrically connected to the second electrode and configured to output a signal generated by the photoelectric conversion unit; and a reset unit configured to reset a voltage on the second electrode to a reset voltage, wherein the photoelectric conversion unit is configured to alternately perform an accumulation operation for accumulating the signal charge in the photoelectric conversion unit and a discharge operation for discharging the signal charge accumulated in the accumulation operation from the photoelectric conversion unit in accordance with a voltage between the first electrode and the second electrode, and wherein, in a period between two consecutive discharge operations among a plurality of discharge operations obtained as a result of performing the discharge operation a plurality of times, said two consecutive discharge operations including a first discharge operation and a second discharge operation subsequent to the first discharge operation with a single accumulation operation therebetween, the reset unit is configured to perform a first reset operation for resetting the voltage on the second electrode, and a second reset operation for resetting the voltage on the second electrode after the first reset operation. a photoelectric conversion unit including a first electrode, a second electrode, a photoelectric conversion layer configured to accumulate a signal charge and disposed between the first electrode and the second electrode, and an insulating layer disposed between the photoelectric conversion layer and the second electrode; an amplification unit electrically connected to the second electrode and configured to output a signal generated by the photoelectric conversion unit; and a reset unit configured to reset a voltage on the second electrode to a reset voltage, wherein the photoelectric conversion unit is configured to alternately perform an accumulation operation for accumulating the signal charge in the photoelectric conversion unit and a discharge operation for discharging the signal charge accumulated in the accumulation operation from the photoelectric conversion unit in accordance with a voltage between the first electrode and the second electrode, and wherein, in a period between two consecutive discharge operations among a plurality of discharge operations obtained as a result of performing the discharge operation a plurality of times, said two consecutive discharge operations including a first discharge operation and a second discharge operation subsequent to the first discharge operation with a single accumulation operation therebetween, the reset unit is configured to perform a first reset operation for resetting the voltage on the second electrode, and a second reset operation for resetting the voltage on the second electrode after the first reset operation.