The invention relates to an arc-shaped steel plate node damper with a replaceable damping plate. The arc-shaped steel plate node damper comprises a composite elastic body, pillar end upper portion connecting parts, pillar end lower portion connecting parts and beam end connecting parts, wherein the pillar end upper portion connecting parts, the pillar end lower portion connecting parts and the beam end connecting parts are arranged at the two ends of the composite elastic body correspondingly. The composite elastic body is an arc-shaped device, the pillar end upper portion connecting parts, the pillar end lower portion connecting parts and the beam end connecting parts are rectangular steel plates, beam end fixing bolt ports are formed in the periphery of each beam end connecting steel plate, and pillar end fixing plate bolt ports are formed in the peripheries of the pillar end upper portion connecting steel plates and the pillar end lower portion connecting steel plates correspondingly. According to the arc-shaped steel plate node damper with the replaceable damping plate, the problems that after an earthquake, an existing damper is completely damaged and used at a time, maintenance cost is high, and materials are easy to waste are solved; after the earthquake, a cutting energy-consumption disc can be replaced, repeated using is achieved, maintenance cost is low, and the materials are not prone to being wasted; and the arc-shaped steel plate node damper can be directly installed at a beam pillar node, operating is easy, the application range is wide, and the damper is simple in structure, small in size and low in cost and does not occupy excessive service spaces.