PURPOSE: To provide a bottle capable of feeding a drink for a baby, which is contained in a bottle main body in advance, to a baby with a simple manipulation.

CONSTITUTION: A nursing bottle for a baby, comprising a fragile part 5, in which a bottle mouth 3 is formed integrally with a bottle main body 1, and a tab 4 having a wall thickness thicker than that of the fragile part 5, is so designed that the bottle mouth 3 is opened by twisting off the fragile part 5, and a drink for a baby is contained in the bottle main body 1 sealed. I.f necessary, an inside cap and an outside cap are provided to keep a nipple of the nursing bottle without being exposed to ambient air.