Based on the Peregrine soliton, the generation and evolution characteristics of breathing pulse in Erbium-doped fiber ring cavity are numerically studied in this paper. Peregrine soliton is a single high-peak pulse which is localized in both time and space. However, due to the interaction between the background wave and the soliton, Peregrine soliton splits into multiple sub-pulses in a single-mode fiber. In order to generate high-peak pulses for long-distance transmission, the background wave needs to be eliminated. In this paper, the Erbium-doped fiber ring cavity is used to eliminate the effect of background wave. The Erbium-doped fiber ring cavity is composed of single-mode fiber, Erbium-doped fiber and opticcouplers. By controlling the lengths of the single-mode fiber and the Erbium-doped fiber in the ring, the intra-cavity dispersion can reach nearly zero dispersion, and the dispersion management can be realized. The results show that the peak intensity ofbreathing pulse is related to the initial input of the Peregrine soliton. In order to obtain a high-intensity breathing pulse, the pulse of PS at the maximum excitation position is selected as the initial input of the fiber ring cavity. Under the action of the fiber ring cavity, the high-peak breathing pulses can be obtained and transmitted for a long distance in the Erbium-doped fiber ring cavity when the intracavity dispersion is near zero dispersion. And the background waves on both sides of the PS gradually evolve into small side lobes. The transmission characteristics of high peak breathing pulses are related to dispersion, nonlinear effects and small signal gain. High-peak breathing pulses can be generated when the net cavity dispersion is in the range ［-0.001?0,0.003?7］ps2. As the nonlinear coefficient increases, the peak intensity of breathing pulses increases, and the amplitude and frequency of oscillation increase. When the nonlinear coefficient increases to a certain extent, the local breathing pulse is gradually formed. With the increase of the small signal gain, the peak intensity of breathing pulses increases, but the amplitude and frequency of oscillation have a little change.