The　application　of　Mn2O3　in　supercapacitors　usually　faces　the　problems　of　poor　conductivity　and　volume　expansion　during　charging　and　discharging　that　lead　to　poor　cycling　stability.　In　this　study,　manganese-based　metal−organic　frameworks　are　designed　as　templates　to　construct　hierarchical　Mn2O3　hollow　microspheres　(Mn2O3-HMS)　for　supercapacitor　electrodes.　For　a　current　density　of　1　A　g−1,　Mn2O3-HMS　delivers　an　ultrahigh　specific　capacitance　of　1058　F　g−1　comparable　to　the　state-of-the-art　results　obtained　for　Mn2O3　composite　materials.　Moreover,　the　capacitance　retention　after　3500　cycles　was　approximately　90.2%　at　10　A　g−1.　The　superb　performance　of　Mn2O3-HMS　may　be　ascribed　to　the　hierarchical　structure　and　synergistic　effect　of　the　carbon　matrix　and　oxygen　vacancies.　The　unique　structure　of　Mn2O3-HMS　can　shorten　the　electron　and　ion　diffusion　pathways　and　provide　abundant　redox　active　sites　during　cycling,　while　the　carbon　matrix　and　oxygen　vacancy　improve　the　charge　transfer　capability　and　accelerate　the　ion　diffusion　of　Mn2O3-HMS.　Furthermore,　when　Mn2O3-HMS　is　used　as　the　cathode　in　flexible　solid-state　hybrid　supercapacitors,　the　device　displays　an　outstanding　areal　capacitance　of　487.86　mF　cm−2　at　a　current　density　of　1　mA　cm−2.　©　2021　Elsevier　B.V.