Special-shaped interface railway rail

The invention discloses a rail with special interfaces, which is provided with a universal rail body. The rail is characterized in that both ends of the rail body are provided with the special interfaces along the axial direction which are correspondingly matched with supporting rail bodies. The cross section of each special interface of the rail body is of an approximate S shape or an approximate inverse S shape; the special interface is flat and straight along the axial direction; and both ends are of circular arc shapes. Or the cross section of each special interface of the rail body is of an approximate Z shape or an approximate inverse Z shape; the special interface is flat and straight along the axial direction; and an included angle between both ends is more than or less than 90 DEG. The positions at the middle parts along the axial interfaces can be provided with clamping plates connected by bolts, nuts and so on, or can be connected in combination by simply adopting the bolts, the nuts and spring was