阐述了近２０年来薄板坯连铸连轧微合金化技术在基础研究、生产技术开发和产品研制等方面所取得的成果，指出了各种薄板坯连铸连轧微合金化技术的关键技术问题，明确了薄板坯连铸连轧流程微合金化技术不同于传统流程的特殊规律，探讨了今后待解决的重点问题和技术发展的方向。

The achievements in basic study, production technology and product development of microalloying technology in thin slab casing and rolling process in recent twenty years are described, the key problems of different microalloying technology are discribed, the difference between thin slab casting and rolling process and conventional process in terms of microalloying technology introduced important problems to be solved and development direction of this technology are discussed.