The　cyclicity　of　superabsorbent　polymers　(SAP)　significantly　impact　the　efficiency　and　sustainability　of　crack　self-healing　for　concretes.　This　study　proposed　a　method　to　assess　the　cyclic　absorption-release　ability　of　SAP　in　concretes　based　on　the　similarity　principles　of　materials　and　geometry.　The　evolution　of　its　properties　during　cycling　was　characterized　using　the　tea-bag　method.　Microstructure,　elemental　composition,　content,　and　functional　groups　were　analyzed　through　field　emission　scanning　electron　microscope,　energy　dispersive　spectrometry,　and　Fourier　transform　infrared　spectroscopy.　Results　demonstrate　that　the　absorption　capacity　of　SAP　with　different　particle　sizes　showed　a　rapid　then　a　slow　decrease　with　the　increasing　wet/dry　cycles.　The　increased　swellable　volume　accelerated　the　attenuation　process,　exacerbating　ion　complexation,　and　ageing.　Despite　these　changes,　SAP　exhibited　excellent　cyclicity　owing　to　its　high　molecular　stability　with　minor　changes　in　functional　groups.　It　is　necessary　to　consider　the　matrix　space　limitation　in　the　estimation　process,　which　can　enhance　the　reliability　and　availability　of　SAP　durability　tests　in　concretes.