In　this　paper,　a　comparative　investigation　on　the　supercritical　carbon　dioxide　power　cycle　for　waste　heat　recovery　of　gas　turbine　is　carried　out.　Four　categories　and　six　cycles　are　chosen　to　represent　typical　layout　of　supercritical　carbon　dioxide　power　cycle　based　on　thorough　literature　reviews.　The　selected　cycles　are　optimized　and　analyzed　based　on　the　results　of　single-　and　multi-objective　optimization　from　the　perspective　of　system　efficiency,　economic　cost　and　configuration　complexity.　According　to　the　exergy　destruction　analysis,　several　guidelines　about　the　heat　exchangers　are　proposed　to　enhance　the　thermal　efficiency　of　gas　turbine　waste　heat　recovery　system,　including　the　avoiding　of　preheating,　the　utilization　of　partial　heating　layout,　the　employment　of　segmentation　method　and　modified　logarithmic　mean　temperature　difference,　the　increase　in　the　number　of　gas　heater.　The　results　indicate　that　turbine　dominates　the　investment　cost　of　power　cycle.　In　conclusion,　dual　heated　cascade　cycle-II　should　be　employed　to　pursue　the　maximized　system　efficiency.　Otherwise,　partial　heating　cycle　is　recommended　due　to　its　balanced　overall　performance.　©　2020　Elsevier　Ltd