The expression of the strip centering force when the hearth roll and the bottom roll in the continuous furnace are tapered rolls is deduced, and the mechanisms of strip centering operation and scoop deformation are introduced and summarized respectively. On this basis, the effects of furnace roll hearth roll types, furnace roll hearth roll shape parameters, furnace roll hearth roll surface state, and furnace roll hearth roll thermal crown on strip steel high-speed plate passing technology were analyzed and proposed Guiding principles for the selection and optimization of furnace rolls and bottom rolls, as well as the means to achieve the quantification of furnace roll shape design.