PURPOSE: A storage container is provided to rapidly detach a cover of paint storage container. CONSTITUTION: A storage container comprises: a storage container(100,200) with a specific inner space; a cover(300) which is detachable from the container; an outer circumference part(110) and second outer circumference(120) with different size. The cover comprises a lid(310) which is coupled to the second outer circumference of the container and a holder(320) extended from one side of the lid.
