A hinge device for a storage container which includes a pair of hinge couplers combined in the form of a single unit, and enables a door of the storage container to be more smoothly closed without generating impact. A storage container, which includes the hinge device, is also disclosed. The hinge device includes a housing fixed to a container body of the storage container or the door, a first hinge shaft and a second hinge shaft rotatably coupled to the housing at opposite sides of the housing, respectively, each of the first and second hinge shafts having one end extending into the housing, and the other end extending outwardly beyond the housing and fixedly coupled to the other one of the container body and the door, a driver arranged in the housing at the side of the first hinge shaft to apply, to the first hinge shaft, a rotating force to cause the door to be maintained in an opened state or to be closed in accordance with an opening angle of the door, and a damper arranged in the housing at the side of the second hinge shaft to increase a resistance to rotation of the second hinge shaft, and thus, to cause the door to be smoothly closed.