In this study, the finite element analysis method was used for simulation of biomechanical related to biting capability of human oral and stress distribution between dental implant and abutment of Dr. Wells two pieces dental implant system (GWOWEI TECHNOLOGY CO., LTD). The analysis results indicated that the diameters of dental implant are O3.5 mm and O 4.3 mm exhibited a maximum equivalent stress (Von Mises stress σeqv) are 163.54 MPa and 154.30 MPa, respectively. The equivalent stress is less than of about 20.44 %及19.29 % to pure titanium implant. When the diameters of alveolar bone are O3.5 mm and O 4.3 mm showed the maximum equivalent stress are 25.25 MPa and 22.05 MPa, respectively. The equivalent stress is lower to than of pure titanium implant approximately 19.42 % and 16.96 %. Moreover, the maximum shear stress of O3.5 mm and O 4.3 mm implants is 90.13 MPa and 80.66 MPa respectively which is lower than to pure titanium implant around 90.13 MPa and 80.66 MPa. Based on the finite element analysis simulation results also demonstrated that the yield stress of the Dr. Wells two pieces dental implant system is in the allowable stress range of pure titanium implant, and therefore will not generate deformation and damage situation. Therefore, it can be believed that the Dr. Wells two pieces dental implant system can be able to withstand the human maximum biting force and does not affect the structure of the alveolar bone around implants.