Highly adhesive oxide coating film and method of manufacturing the same

To provide a method for forming a dense oxide film on a non-oxide ceramic substrate with good adhesion to the substrate at a low cost and on a simple method, and high-temperature oxidation and high-temperature of the substrate A non-oxide ceramic structure that inhibits corrosion is provided. A method for producing a corrosion-resistant oxide film formed on a non-oxide ceramic base material, comprising: (1) using silicon nitride, silicon carbide, or a composite material thereof as a base material; (2) The non-oxide ceramic is embedded in an oxide powder of nail powder and subjected to reactive sintering under high pressure and in an inert atmosphere. (3) Above (1) A method for producing an oxide film, characterized by forming an oxide layer on a substrate according to (2), and a high-temperature corrosion-resistant non-oxide ceramic structural member.