The characteristics of key technology in high-effective and thin-slab continuous casting of steel with proprietary intellectual propertyright are discussed. The research and development status of the avanced technologies such as soft reduction, hydraulic-driven non-sinusoidal oscillation, and electromagnetic continuous casting is introduced. The progress direction of high-efficiency and high quality of conventional continuous casting is discussed, and the development trend of near-net-shape continuous casting and electromagnetic continuous casing is given.