High-performance steel fiber castables, specially made for high temperature environment, with alumina content ≥80%, high refractoriness ≥1790℃ and cold compression strength ≥35MPa, are suitable for high temperature equipment lining in electric power, metallurgy and other industries, and have become an ideal solution to solve the problem of high-temperature abrasion resistance by virtue of excellent high-temperature resistance, thermal shock resistance and high-strength characteristics.