Spinal fusion cage

The invention discloses a spinal fusion cage, and belongs to the technical field of bio-medical metal materials, in particular a homogeneous hyper-elastic porous interbody fusion cage. The spinal fusion cage provided by the invention has a novel structure. The spinal fusion cage, through special structural design, not only guarantees braking, fixing and durable supporting performances but also greatly improves a fusion rate between an implant and surrounding tissues, so that the problems that the spinal fusion cage is easily loosened and is poor in new bone formation capacity are thoroughly solved. The spinal fusion cage disclosed by the invention is integrally represented as a three-dimensional interlinked porous structure and is made by weaving and sintering metal wires; and the metal wires are made from pure titanium, titanium alloy, pure tantalum or tantalum alloy.