To review the progress in the treatment of bone defect by porous tantalum implant. Recent literature was extensively reviewed and summarized, concerning the treatment method of bone defect by porous tantalum implant. By right of their unique properties, porous tantalum implants have achieved very good results in the treatment of certain types of bone defects. Porous tantalum implants have their own advantages and disadvantages. If the case is meet to its indications, this method can obtain a good effect. Porous tantalum implants provide a new way for the clinical treatment of bone defects.