The invention discloses a float glass edge pulling rod with a telescopic rotating shaft. The rotating shaft penetrates through the interior of a cooling water drum and is supported at a front end and a rear end of the cooling water drum, wherein an edge pulling wheel is mounted at the front end of the rotating shaft; a cooling water inlet and outlet device is arranged at the rear end of the rotating shaft; the rotating shaft and the cooling water drum form a whole and are mounted on an edge pulling machine moving frame; keys are arranged on the rotating shaft; a driving wheel is arranged on the rotating shaft supported at the rear end of the cooling water drum; and a rotation bearing is arranged at a support position of the rear end of cooling water drum. According to the float glass edge pulling rod with the telescopic rotating shaft provided by the invention, a shaft sleeve extension section is loosened or tightened without changing the position of the edge pulling machine moving frame, so that axial positions of the rotating shaft and the water drum can be moved or tightened conveniently; a length of the edge pulling wheel going deep into a float glass tin tank can be adjusted, the length of a body of an edge pulling machine is reduced greatly; and the float glass edge pulling rod with the telescopic rotating shaft is particularly suitable for occasions that the size of a workshop is limited and the adjustment range of the edge pulling wheel is wide.