The invention provides a maglev train track and a joint device of the same. Adjusting amount of a joint track seam can be increased and demands for large-span continuous beams can be met. The joint device is used for connecting a first guide rail arranged on a first rail gap and a second guide rail arranged on a second rail gap; the first track beam is adjacent to the second track beam; the joint device is formed by a rail gap distribution mechanism and a connection rail arranged on the first track beam; two ends of the connection rail are respectively connected with the first guide rail and the second guide rail in a longitudinal and movable way; rail gaps are arranged between the connection rail and the first guide rail and the second guide rail; and when a gap between the first track beam and the second track beam is changed, the rail gap distributing mechanism drives the connection rail to longitudinally move, so each rail gap can be adjusted. Use demands of large-span continuous beams can be met, and excessive individual rail gaps can be prevented by the rail gap distribution mechanism; and use reliability and safety can be guaranteed.