A disc prosthesis comprising an upper cover provided with a cavity and a curved surface； a bearing member comprising an outer surface, on which the upper cover can rotate and received by the cavity, and at least one mount； a movement member which is provided with an outer surface compatible with an inner surface of the mount, and which is received by the mount so as to move concurrently with the upper cover； a lower cover provided with a cavity to receive said mount and a curved surface； and a connection member extending from the cavity towards the lower cover and being mounted to the movement member by being passed through a channel which extends along the bearing member and is in connection with said mount so as to connect the bearing member to the upper cover.
