The invention relates to a magnesia material for repairing a converter lining, and a preparation method and a using method thereof. According to the magnesia material, magnesia is taken as a main rawmaterial, silica fume is taken as a binding agent, at least one magnesium oxide micro powder, calcined alumina micro powder, silicon carbide micro powder, zirconium oxide micro powder and titanium dioxide micro powder is taken as an additive, at least one of hydroxypropyl methyl cellulose and carboxymethylcellulose is taken as a bleeding prevention agent, at least one of boric acid, citric acid, tartaric acid and oxalic acid is taken as a retarder, at least one of metal aluminum powder and organic anti-explosion fiber is taken as an anti-burst agent, water is taken as a medium, and the magnesia material is prepared after uniform mixing. The magnesia material is an environmentally-friendly magnesia material which is rapid in sintering and long in service life, and has the advantages of environmental protection, no pollution, high mobility, short sintering time and the like.