The invention relates to a post-earthquakerepairable diamond steel truss energy dissipation fuse after an earthquake. The post-earthquakerepairable diamond steel truss energy dissipation fuse is usedfor energy dissipation and shock absorption of pulling / compressive structures such as steel trusses. The post-earthquakerepairable diamond steel truss energy dissipation fuse after the earthquake comprises prefabricated parts, connecting parts with screw holes, rigid rods with screw holes at the two ends, friction type high-strength bolts, gaskets with bearings, springs, limited-angle rotating ball joint, a center connecting ball, spring sleeves, and a lead part. According to the post-earthquakerepairable diamond steel truss energy dissipation fuse after the earthquake, as a part of a steel truss structure, the repairable diamond steel truss energy dissipation fuse is arranged at the pulling / compressive rod end of the steel truss, under the horizontal load action such as the earthquake, damping is provided through friction connection and the lead at rigid rod joints, earthquakeenergy is dissipated, and thus the action of energy dissipation and shock absorption is achieved; elastic force of the springs provides deformation restoring force, thus the fuse has a good ability to restore deformation, the overall structure in the earthquake is protected, and the dual functions of energy dissipation and a protection structure of the fuse are reflected; and after the earthquake, the damaged friction joints, sleeves or lead can be repaired or replaced quickly, and thus the structure function is quickly recovered.