A　fiber-reinforced　polymer　(FRP)　confined　engineered　cementitious　composite　(ECC)　column　as　a　new　high-performance　composite　member　achieves　significant　ductility.　Understanding　its　cyclic　behavior　is　necessary　to　guide　seismic　design.　This　paper　presents　an　experimental　study　on　the　compressive　behavior　of　large　rupture　strain　(LRS)　FRP　and　traditional　glass　FRP　(GFRP)　jacketed　ECC　cylinders　subjected　to　full　and　partial　cyclic　loadings.　Effects　of　FRP　confinement　level,　FRP　type,　and　loading　scheme　on　the　failure　pattern,　stress-strain　relationship,　ultimate　condition,　plastic　strain,　and　stress　deterioration　ratio　were　examined.　Existing　equations　for　plastic　strain　and　stress　deterioration　ratio　of　the　envelope　and　internal　cycles　were　evaluated.　Based　on　the　experimental　results,　new　calculation　formulas　were　derived　for　the　plastic　strain　and　stress　deterioration　ratio.　A　threshold　involving　partial　unloading/reloading　factors　was　determined　to　define　the　effective　cycles.　In　addition,　a　cyclic　model　composed　of　a　monotonic　envelope　model　and　an　unloading/reloading　model　was　developed　for　estimating　the　stress-strain　hysteresis　loops　of　both　GFRP-　and　LRS　FRP-confined　ECC　cylinders.　　©　2023　American　Society　of　Civil　Engineers.