Finned tube is a type of heat exchanger element used for enhanced heat transfer, which is composed of a base tube and external fins. The finned tube can effectively improve the convection heat transfer efficiency, reduce the weight of the equipment and reduce the project cost. Finned tube enhanced heat transfer technology has been widely used in the field of cement plant waste heat power utilization. In this paper, the principle of finned tube to enhanced heat transfer, classification of finned tube and its application in cement plant waste heat recovery (WHR) system are elaborated, which provides technical support for the improvement and upgrading of WHR equipment and system.