A　topology　optimization　design　method　is　put　forward　for　the　mega　braced　systems　of　high-rise　buildings　by　the　ICM　method　of　the　topology　optimization　of　continuum　structures.　In　high-rise　building　codes,　limits　on　structural　rigidity　are　specified　in　the　form　of　story　drifts.　Considering　the　characteristics　of　structural　topology　optimization,　an　adjoining　method　for　sensitivity　analysis　of　displacement　difference　is　derived,　and　computational　efficiency　is　improved.　The　optimization　model　with　minimizing　weight　objective　subject　to　displacement　constraints　is　established　by　the　ICM　method,　which　is　more　suitable　with　the　form　of　limits　on　structural　rigidity　in　high-rise　building　codes.　The　optimal　topology　obtained　by　the　ICM　method　can　meet　the　limits　in　codes.　The　proposed　method　provides　a　tool　for　automatic　calculation　and　optimization　design　during　the　conceptual　design　phase,　and　effectively　makes　up　for　the　deficiency　of　empirical　design.　©　2017,　Engineering　Mechanics　Press.　All　right　reserved.