The present invention discloses a self-balancing adjustable rack device and a refrigerator having the same; the rack device includes a rack assembly, slide rail assemblies and a synchronizing assembly, the rack assembly includes a rack body and brackets, the slide rail assemblies are arranged on two sides of the rack body in a vertical direction and fitted with the brackets, the synchronizing assembly includes at least one tensioning piece and at least two pulleys, one end of the tensioning piece is fixed at an upper end of a sliding plate, and the other end of the tensioning piece is fixed at a lower end of another sliding plate in the slide rail assembly on the other side through the pulleys, such that two sides of the rack assembly fixed to the sliding plate can be balanced in a moving process, and meanwhile, a pulling force is provided for the rack assembly by the tensioning piece.