The invention discloses a synchronous heating pipe and a preparation method and application of the synchronous heating pipe. The synchronous heating pipe comprises a hollow sealed rod-shaped base material. A cavity of the rod-shaped base material is filled with a proper amount of a heavy oxygen water (H2O<18>) medium, and the ratio of the mass of the heavy oxygen water to the volume of the cavityis 0.01-1.110 g/cm<3>. It is tested that the heat retention efficiency of the synchronous heating pipe designed according to the technical scheme is close to 100%, and the time of transferring heat from the heating end to the far end is close to synchronization. The synchronous heating pipe and the preparation method and application can be applied to various heating devices. By the adoption of thetechnical scheme, the synchronous heating pipe has the following beneficial effects that the heavy oxygen water is very stable after atomization, and the effects of the high temperature rise speed, constant temperature stability and good thermal conductivity are achieved; the temperature difference in the pipe does not exceed 0.1 DEG C/m, the high-temperature superconductivity is in the range of300-3,000 DEG C, the medium-temperature superconducting temperature is in the range of 0-300 DEG C, and the low-temperature superconducting temperature is in the range of negative 201 DEG C-0; and thesynchronous heating pipe is not only low in preparation cost and mild in preparation environment, but also extremely convenient to use and can be suitable for heating requirements in different scenes; and the composition is singular, the pipe wall cannot be corroded, and the service life is long.