Provided is a magnesium-containing metal material provided with, on the surface thereof, a coating having excellent corrosion resistance. Specifically, provided is a magnesium-containing metal material with a coating, characterized by having: a first coating that contains magnesium hydroxide and that is disposed on the surface of a magnesium-containing metal material containing magnesium or a magnesium alloy; a third coating that contains hydroxyl apatite and/or hydroxyapatite carbonate and that is provided above the first coating; and a second coating that contains dibasic calcium phosphate and that is interposed between the first coating and the third coating.