The invention discloses a disposable feeding-bottle which comprises a bottle body with holding space filled with proper amount of powdered milk, an injection end located at one end of the bottle body, a film pipe with one end located in the bottle body and the other end combined with the injection end of the bottle body and having a first seal structure, a pressure locking structure located at the connection of the injection end and film pipe, and a releasing device located at the other end of the bottle body with respect to the injection end and composed of a second seal structure, wherein the water in the bottle presses the film pipe in a natural locking state through the hydraulic pressure. A disposable apparatus has the same structure with the disposable feeding-bottle with the bottle body displaced by a slot body. A container comprises film pipe and pressure locking structure. The invention can excuse traditional feeding-bottle recovery steps such as wash and thermal sterilization, and is easy to carry and use. The inventive disposable apparatus and container has easy operation and hard leakage through the simple design at injection opening.