The　influences　of　liquid-binder　ratio　and　mixing　sequence　on　the　performance　of　superabsorbent　polymer　(SAP)-containing　alkali-activated　slag　(AAS)　mortar　are　investigated　in　this　study.　It　is　found　that　the　SAP　absorbs　much　less　liquid　in　upper　supernatant　of　AAS　than　in　water.　Mixing　SAP　with　liquid　first　induces　a　larger　absorption　capacity　of　the　SAP　than　mixing　it　with　solid　first.　Increasing　the　liquid-binder　ratio　improves　the　flowability　but　reduces　the　strength　of　AAS　mortar　with　SAP.　Nonetheless,　the　strength　of　internally　cured　mixtures　is　higher　than　that　of　the　reference　even　with　an　extra　liquid-binder　ratio　of　0.09.　The　reason　behind　lies　in　the　refinement　of　capillary　and　gel　porosity　by　internal　curing,　despite　the　presence　of　large　voids　originated　from　SAP.　The　autogenous　shrinkage　of　AAS　paste　is　reduced　significantly　by　the　incorporation　of　SAP　but　the　further　mitigating　effect　of　increased　liquid-binder　ratio　is　limited.　©　2021　The　Authors