The invention is to provide an adjustable vacuum food storage container, comprising of a base, a socket mounted on the base, and a cover covering the socket; a vacuum controller, a pressure detective means, an out connector power means, a spare battery set, and a power switch are disposed on the base, and an exhaust valve are further added on upper cover; the pressure detective connected to the socket for auto-detecting the accommodation between the socket and the upper cover, and the vacuum controller combined to the pressure detective means for keep it at vacuum state at any moment.