A valve driving device including a primary liquid chamber, a secondary liquid chamber, a valve body that opens and closes a communication flow channel through which the primary liquid chamber and the secondary liquid chamber are in communication, a pressure receiving member that partitions the secondary liquid chamber and atmospheric air in a liquid tight manner, and an operation member that opens and closes the valve body by transmitting the reaction of the pressure receiving member to the valve body, in which the pressure receiving member includes a pressure receiving plate portion that operates the operation member, and a pressure receiving film portion that is provided in the periphery of the pressure receiving plate portion, the valve driving device including a pressing driving portion that removes pressing of the pressure receiving plate portion prior to that of the pressure receiving film portion.