To provide a baby bottle capable of easily and quickly preparing milk and suppressing use cost.A baby bottle according to the present invention includes a container body having a bottomed tubular shape having an annular mouth neck portion, a cap attached to the mouth-neck portion, a nipple portion to be attached to the cap, Wherein the cap comprises: a tubular attachment portion to be attached to the mouth-and-neck portion and a fitting portion slidably fitted to an inner circumferential surface of the attachment portion in the axial direction of the attachment portion And a bottomed tubular milk material housing portion 21. The milk material housing portion has a milk material discharge opening 22 at the lower end portion of the peripheral wall, and the milk material storage portion is fitted to the attachment portion The milk material discharging opening is sealed by the inner peripheral surface of the mounting portion in the first fitted state and the milk material storage portion is pressed downward from the first fitted state to the second fitted state , The opening for discharging the milk material is exposed in the container main body.(FIG.【課題】容易かつ迅速にミルクを調製することができると共に、使用コストを抑えることができる哺乳瓶を提供する。【解決手段】本考案に係る哺乳瓶は、環状の口頸部を有する有底筒状の容器本体2と、上記口頸部に装着されるキャップ3と、上記キャップに装着される乳首部とを備える哺乳瓶であって、上記キャップが、上記口頸部に装着される筒状の取付部11と、上記取付部の内周面にこの取付部の軸方向にスライド可能に嵌合される有底筒状のミルク材収容部21とを有し、上記ミルク材収容部が、周壁の下端部にミルク材排出用開口22を有し、上記ミルク材収容部を上記取付部に嵌合した第1の嵌合状態で上記ミルク材排出用開口が上記取付部の内周面によって封止され、上記第1の嵌合状態から上記ミルク材収容部を下方に押下した第2の嵌合状態で上記ミルク材排出用開口が上記容器本体内に露出する。【選択図】図4
