The present disclosure provides a support device and a display apparatus. The support device includes: a support platform; a base disposed opposite to the support platform; and a plurality of superconducting magnetic levitation structures, each of the superconducting magnetic levitation structures including a superconductor and a magnet disposed oppositely; in each of the superconducting magnetic levitation structures, one of the superconductor and the magnet is disposed on the support platform, and the other is disposed on the base. The plurality of superconducting magnetic levitation structures are arranged to operate independently of each other without interference, and a repulsive force between the superconductor and the magnet of each of the superconducting magnetic levitation structures is set to be adjustable.