In this study, it refined by the vacuum distilling refining and the billet was produced for the obtained 99.99% or more of purity magnesium deposit by compression forming, extrusion process was performed and the corrosion resistance of extrusions and the tensile characteristic which were acquired were investigated. The specimen showed good corrosion resistance rather than commercial AZ91D magnesium alloy die-castings. The specimen has high ductility and it is good, and compared with 99.9% of purity magnesium.