The invention provides a circular arc turning roller way at the cold end of a piece of plate glass; the circular arc turning roller way comprises an arc-shaped roller way (1); and linear roller ways (2) are arranged at both two ends of the arc-shaped roller way (1). Power output of the arc-shaped roller way is completed under the single power control condition; and therefore, compared with the prior art, the circular arc turning roller way provided by the invention has the advantages of being simple in structure, lower in manufacture cost, high in coordination when equipment works, smooth to work and the like.