Provided is a liquid ejecting device. An alternating current electric field generation unit includes a first electrode and a second electrode disposed adjacent to each other, a high-frequency voltage generation unit configured to generate a high-frequency voltage to the first electrode and the second electrode, and a conductor configured to electrically couple the first electrode and the second electrode to the high-frequency voltage generation unit. Based on a result detected by a detection unit configured to detect a change in an alternating current electric field generated from the alternating current electric field generation unit, a control unit is configured to stop generation of the high-frequency voltage from the high-frequency voltage generation unit to the first electrode and the second electrode.