The invention discloses an oscillating heat pipes and a method for realizing high charge cable heat dissipation by using the same. The oscillating heat pipe can be formed by winding a slender copper tube into single or multiple elbows to form a closed loop through head-to-end connection; the closed loop is provided with a liquid filling port used for injecting working fluid after the vacuuming ofthe copper tube, so that the fluid in the copper tube can keep vapor and liquid phase states, and the liquid filling port can be closed after fluid filling is finished; and the distribution of the fluid in the copper tube presents an interval state of one section liquid and one section vapor, the wound coper tube can be divided into two sections according to spatial distribution, one is a heat dissipation and condensation section, and the other is a heating and evaporation section. The oscillating heat pipe is simple in structure and can be formed by winding the slender copper tube with a diameter of 3 mm into a closed head-to-end loop serpentine pipeline; and the oscillating heat pipe is flexible and diverse in structure and easy to match multiple cable wiring modes, and can combine withcold sources of long distances from periphery, and thus, heat dissipation costs can be lowered.