A milk bottle comprises a bottle body, a base which can be combined with and separated from the bottle body, and a liquid tight part between the bottle body and the base. Using the bottle body and the base to clamp and position the liquid tight part can not only prevent the liquid tight part from falling off, but also use the top buttress to control the opening and closing of the valve port of the liquid tight part, so as to improve the service life and stability and avoid leakage.一種奶瓶包含一瓶身、一可與該瓶身相結合與分離的底座，及一位於該瓶身與該底座間的液密件。利用該瓶體與該底座夾制定位該液密件，不僅可以避免該液密件脫落，還能利用該頂抵件控制該液密件之閥口的啟閉，進而提升使用壽命與穩定性，更能避免發生滲漏。
