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Purpose: The purpose of this study is a porous cube mechanical analysis for the dental implant. Methods: The porous cube with a side length of 10 was designed for dental implant. To choose proper design, porous hexagon with a side 10 which was drilled as a regular hexagon with diameter 0.8 , 1.0 , 1.2 and a side 0.4 , 0.5 , 0.6 each using Computer AUTO CAD(Autodesk, 2008). Each cube was carried out in the mechanical analysis. Results: The result of mechanical analysis was observed that the H0.8 was minimum stress 0.045068㎫, maximum stress 9.4565㎫ and minimum strain 0.00389 10-4㎫, maximum strain 0.816 10-4㎫, the H1.0 minimum stress 0.001147㎫, maximum stress 9.099㎫ and minimum strain 0.000099 10-4㎫, the maximum strain 0.784 10-4㎫, the H1.2 minimum stress 0.099393㎫, maximum stress 13.137㎫ and minimum strain 0.0112 10-4㎫, maximum strain 1.13 10-4㎫. Conclusion: The mechanical analysis of porous hexahedron was that H1.0 is the best result. It will be applicable to the porous implants.