Abstract: A plasma liquid generating device includes a tube, a plasma generating module, a flow limiting unit, and a position limiting member. The tube has at least an air inlet and a flow channel outlet. The plasma generating module is disposed adjacent to the air inlet and configured to generate plasma. The flow limiting unit is detachably disposed in the tube, and a distance between the flow limiting unit and the flow channel outlet is greater than a distance between the air inlet and the flow channel outlet. The position limiting member is detachably disposed at the flow channel outlet to limit the position of the flow limiting unit.