The present invention relates to a spray device for spraying oil which may be easily acidified, which stores oil such as perilla oil, pumpkin seed oil, pine nut oil, evening primrose seed oil, walnut seed oil, Gegeol radish seed oil, and the like, which may be easily acidified when being in contact with air or sunlight, or being exposed thereto, in a container and which sprays the same in spray forms for use. The spray device of the present invention comprises a light-impermeable container； a tube provided in the light-impermeable container to inject and discharge contents therethrough； a bag provided on the outside of the tube； and a back valve assembly formed by coupling a mounting cup to an upper portion of the tube. A compressed gas for generating an injecting force is injected between the container and the outside of the bag, and an upper portion of the container is sealed by the mounting cup of the back valve assembly. Various types of oil contents such as perilla oil, pumpkin seed oil, pine nut oil, evening primrose seed oil, walnut seed oil, Gegeol radish seed oil, and the like, which may be easily acidified when being in contact with air or sunlight, or being exposed thereto, are injected through the tube of the back valve assembly by pressurizing the inside of the bag such that the bag swells up. When an actuator is coupled to the bag valve assembly and pushed by pressurizing the same, the compressed gas injected into the container is shut off from the contents by the bag such that only the contents in the bag can be injected to the outside through the tube without intrusion of air from the outside of the container.본 고안은 들기름, 호박씨유, 잣기름, 달맞이꽃씨류, 호두씨유, 개걸무씨유 등과 같이 공기나 햇빛에 접촉하거나 노출되었을 때 산패하기 쉬운 기름류를 용기에 담아 스프레이 형태로 분사시켜 사용할 수 있도록 한 산패하기 쉬운 기름류의 분사를 위한 스프레이 장치에 관한 것으로, 그 구성은 광 비투과성의 용기와, 상기 용기의 내부에 튜브가 구비되어 내용물이 주입 및 배출될 수 있게 하고, 상기 튜브의 외측에 백이 구비되며, 튜브의 상부에 마운팅컵이 결합되어 백밸브결합체를 구성한 것과； 상기 용기와 백의 외측 사이에 분사력 생성을 위한 압축기체를 주입되고, 상기 백밸브결합체의 마운팅컵에 의해 용기의 상부가 밀폐되게 한 것과
