The invention discloses a new spring damping device for coping with pipeline pressure jump, comprising a box body of which the front and rear ends are arranged symmetrically; the box body is a revolving body formed by a curve rotating around an axis for a circle, and both ends of the box body are coaxially provided with connecting devices with the same diameters used for connecting upstream and downstream gas pipelines; a damper system and a spring system are arranged in the box body, a spring coil in the spring system moves back and forth as the upstream gas pressure changes so as to drive 4 damper in the damper system to move, resulting in gas circulation area change, and the purpose of stabilizing pressure and flowrate is achieved. In the invention, no external energy or other substances are required, and the new spring damping device has the advantages of simple structure, easy installation and maintenance, and flexible speed adjustment; the influence of upstream pressure jump on downstream pipelines, instruments and equipment is reduced effectively to ensure the safe and steady operation of the pipeline.