According　to　the　measured　responses　to　accurately　evaluate　the　seismic　damage　of　structural　members　can　provide　suggestions　for　the　repair　of　damaged　structures.　In　view　of　the　bottleneck　problem　that　the　measurable　information　of　structures　is　limited　and　the　seismic　performance　of　repaired　structures　is　difficult　to　evaluate,　this　study　established　the　relationship　between　the　end　curvature　and　the　top　displacement　of　members,　and　discussed　the　internal　relationship　of　residual　displacement,　deformation,　curvature　and　damage　indexes.　From　the　perspective　of　energy,　a　damage　evaluation　model　based　on　elastic-plastic　energy　dissipation　ratio　(EPEDR)　is　proposed.　Considering　the　deficiency　that　the　repair　process　is　difficult　to　simulate,　a　simulation　method　of　damaged　structures　repair　is　established.　Taken　an　RC　frame　structure　as　an　example,　selected　different　damage　indexes　to　quantify　the　damage　of　members,　and　carried　out　rapid　repair　analysis　according　to　the　damage　quantification　results　and　repair　strategies.　In　addition,　seismic　vulnerability　analysis　of　the　repaired　damaged　structure　is　performed.　The　analysis　results　proved　the　rapid　repair　can　effectively　improve　structural　performance,　and　according　to　residual　deformation　to　guide　the　repair　have　the　best　enhancement　effect.　Compared　with　the　member-selective　repair　strategy,　the　layer-selective　repair　strategy　has　a　better　repair　effect.