A nasal flushing device includes a catheter unit, a connection unit, and an injection unit. The catheter unit includes a catheter body, and the plural of openings formed in the body of the catheter, the catheter body has an open end and a closed end. The connection unit includes a connect part and a combination part. The end of the set of the connect part connecting pipe connected with the open end, opposite the other end of the combination part connection. The injection unit including the combination part syringe connected together, and a putter set in the syringe.一種鼻通道沖洗導管裝置,包含一導管單元、一連接單元,及一注射單元。該導管單元包括一導管本體,及複數形成於該導管本體上之開孔,該導管本體具有一開放端及一相反於該開放端的封閉端。該連接單元包括一連接部及一組合部,該連接部之一端裝設有一與該開放端套接在一起的連接細管,相反的另一端與該組合部連接。該注射單元包括一可分離地與該組合部套接在一起之注射筒,及一設置於該注射筒之擠壓件。