The invention provides a plasma nozzle, and the plasma nozzle comprises an outer cylinder, at least one first plasma actuator and at least one power supply, wherein the power supply is used for providing excitation voltage for the first plasma actuator; the first plasma actuator is used for obtaining the plasma under the function of the excitation voltage; the first plasma actuator comprises a first grounding electrode and two first high voltage electrodes respectively arranged on two sides of the first grounding electrode, the first grounding electrode is arranged on the outside surface of the outer cylinder, and the first high voltage electrodes are arranged on the inside surface of the outer cylinder. According to the invention, a plurality of plasma actuators are adopted to form a plurality of plasma vortexes, so that the burning of a burner is enhanced in use, and fray-out of flame is prevented. In addition, the plasma actuator also can generate active group, release heat and is good to enhance burning.