A method of manufacturing an airfoil structure to be used in a jet engine, the airfoil structure including a plurality of airfoils, a support for supporting the airfoils at their lower ends, and a case for covering upper ends of the airfoils, and each airfoil including an airfoil body formed extending in a longitudinal direction of the airfoil, and an airflow generator, provided to the airfoil body, for producing induced airflow by generating plasma, the method comprising a process of forming the airflow generator that includes: a first electrode forming step of forming a first electrode on the airfoil body; a dielectric layer forming step of forming a dielectric layer on the airfoil body; and a second electrode forming step of forming a second electrode on a surface of the dielectric layer in a way that exposes the second electrode to an outside, such that the second electrode is electrically connected to the first electrode, characterised in that in the first electrode forming step, the first electrode is formed on an airfoil lateral surface of the airfoil body, spanning from a trailing edge-side part of a negative pressure surface to a trailing edge-side part of a positive pressure surface via a leading edge, in the dielectric layer forming step, the dielectric layer is formed by forming a ceramic powder into a film to cover the first electrode through room temperature consolidation and the dielectric layer is formed on all the airfoil lateral surface of the airfoil body, and in the second electrode forming step, the second electrode is formed on the surface of the dielectric layer, which is opposite from the airfoil body, in the way that exposes the second electrode to the outside. the airfoil structure including a plurality of airfoils, a support for supporting the airfoils at their lower ends, and a case for covering upper ends of the airfoils, and a plurality of airfoils, a support for supporting the airfoils at their lower ends, and a case for covering upper ends of the airfoils, and each airfoil including an airfoil body formed extending in a longitudinal direction of the airfoil, and an airflow generator, provided to the airfoil body, for producing induced airflow by generating plasma, an airfoil body formed extending in a longitudinal direction of the airfoil, and an airflow generator, provided to the airfoil body, for producing induced airflow by generating plasma, the method comprising a process of forming the airflow generator that includes: a first electrode forming step of forming a first electrode on the airfoil body; a dielectric layer forming step of forming a dielectric layer on the airfoil body; and a second electrode forming step of forming a second electrode on a surface of the dielectric layer in a way that exposes the second electrode to an outside, such that the second electrode is electrically connected to the first electrode, characterised in that in the first electrode forming step, the first electrode is formed on an airfoil lateral surface of the airfoil body, spanning from a trailing edge-side part of a negative pressure surface to a trailing edge-side part of a positive pressure surface via a leading edge, a first electrode forming step of forming a first electrode on the airfoil body; a dielectric layer forming step of forming a dielectric layer on the airfoil body; and a second electrode forming step of forming a second electrode on a surface of the dielectric layer in a way that exposes the second electrode to an outside, such that the second electrode is electrically connected to the first electrode, characterised in that in the first electrode forming step, the first electrode is formed on an airfoil lateral surface of the airfoil body, spanning from a trailing edge-side part of a negative pressure surface to a trailing edge-side part of a positive pressure surface via a leading edge, in the dielectric layer forming step, the dielectric layer is formed by forming a ceramic powder into a film to cover the first electrode through room temperature consolidation and the dielectric layer is formed on all the airfoil lateral surface of the airfoil body, and in the second electrode forming step, the second electrode is formed on the surface of the dielectric layer, which is opposite from the airfoil body, in the way that exposes the second electrode to the outside.