Disclosed is a nasal cavity cleaning container having functions of preventing back flow and scattering. The container prevents back flow of a cleaning solution introduced into the nasal cavity back into the nasal cavity cleaning container, and seals a spray hole formed on a container cap when producing the cleaning solution which is a saline solution prepared by putting distilled water and saline powder into a container main body and then mixing the same. By preventing scattering of the cleaning solution, it is possible to favorably mix and form the cleaning solution while preventing contamination around.비강에 유입된 세척액가 다시 비강 세척용기내로 역류하는 것을 방지하고, 용기본체에 증류수와 식염분말을 넣고 흔들어 생리식염수인 세척액를 만들 때 용기캡에 형성된 분사공을 밀폐함으로써 세척액가 비산되지 않도록 하여 주변 오염을 막고 세척액를 원활하게 혼합 형성할 수 있도록 한 역류차단및 비산방지 기능을 갖는 비강세척용기가 개시된다.