With　the　vigorous　development　of　the　global　economy,　modern　enterprises　have　agreed　to　implement　green　supply　chain　management.　The　evaluation　and　selection　of　green　suppliers　plays　a　vital　role　in　successful　green　supply　chain　management.　As　a　multi-attribute　group　decision-making　green　supplier　selection　problem,　it　is　difficult　to　fully　describe　the　evaluation　factors　using　precise　numerical　values　and　classical　fuzzy　sets,　so　it　cannot　assist　enterprise　managers　in　making　completely　reasonable　decisions.　Therefore,　this　paper　proposes　a　green　supplier　evaluation　and　selection　method　based　on　interval　BPA-based　intuitionistic　fuzzy　sets.　First,　build　a　green　supplier　evaluation　index　system　based　on　the　characteristics　of　the　papermaking　enterprise＇s　suppliers.　Then,　the　intuitionistic　fuzzy　number　is　used　to　express　the　indicators　of　the　evaluator　for　each　supplier,　and　the　intuitionistic　fuzzy　information　is　integrated　through　the　organic　combination　of　the　IIFWA　integration　operator　and　the　structural　entropy　weight　to　obtain　the　comprehensive　evaluation　value　of　the　evaluator.　Finally,　the　interval　BPA-based　intuitionistic　fuzzy　set　method　ranks　the　candidate　suppliers　and　determines　the　best　green　supplier.　Applying　this　method　to　the　field　of　green　supplier　evaluation　and　selection　can　provide　an　effective　method　for　enterprises　to　select　suppliers　scientifically　and　reasonably,　which　has　practical　reference　value　and　practical　significance.　©　2022,　The　Author(s).