Abstract: Tantalum is increasingly used in daily life because of its excellent biological inertia and Biocompatibility, also known as “Pro-biological” metal. Pure tantalum has been used in orthopedics for more than 80 years. Due to the difference of elastic modulus between pure tantalum and bone, it is disadvantageous to bone healing. Porous tantalum is an open-hole metal structure that resembles human cancellous bone in appearance. It has a low modulus of elasticity, is close to the subchondral bone and cancellous bone, and can achieve better load transfer and minimize stress shielding. Its friction coefficient is one of the highest in biomaterials, and even without screw fixation, the initial stability of the fusion cage can be fully achieved. Because of different fusion criteria, the fusion rate of literature reports is different. Finally, porous tantalum has been shown to be effective in obtaining fusion and improving the prognosis of patients after anterior cervical interbody fusion.