In this article, in alkaline silicate electrolyte, using the orthogonal experimental method, through analyzing surface morphology and corrosion resistance of the film which formed on the MB8 magnesium alloy, to determine the best density of the electrolyte. Then in this density electrolyte, using the same method to determine the optimal electrical parameters, thus determined the silicate system, the best micro-arc oxidation process. Through the best process to form micro-arc oxidation film, improved the cor...