The main intention for this study is to explore the design parameters of the root explants for stress effects of alveolar bone surrounding tissue. The length, diameter, taper and thread pitch of root explants as design parameters, using finite element analysis Taguchi method of experimental design rule can quickly identify the root explants to optimize the design parameters. According to study results showed that the maximum stress occurs at the convergence at dense bone and the root of the neck. The root explants of diameter of 6mm, length of 14mm, taper of 0∘and pitch width of 0.5mm can effectively reduce the maximum stress in the bone and reduce excessive bone loss around the artificial tooth root and improve the success rate of implants.