Aiming　at　the　aggregation　problem　of　cross-efficiency　in　data　envelopment　analysis　(DEA),　this　paper　proposes　a　new　regret　cross-efficiency　aggregation　method　based　on　fairness　perception.　Firstly,　the　regret　theory　is　introduced　to　describe　decision-makers′　regret　aversion,　and　the　regret-rejoice　matrix　is　constructed.　Secondly,　the　intersectional　cross-efficiency　model　is　used　to　calculate　the　perceived　utility　of　regret　fairness.　Then,　a　cross-efficiency　aggregated　weight　distribution　model　is　constructed　and　the　cross-efficiency　of　regret　interval　considering　fairness　perception　is　calculated.　The　lower　and　upper　limits　of　cross-efficiency　of　regret　interval　are　synthesized　by　introducing　a　parameter　reflecting　the　psychological　preference　of　decision-makers.　Finally,　an　example　is　given　to　verify　the　validity　and　rationality　of　the　proposed　method.　©　2024　Zhejiang　University.　All　rights　reserved.