Layered　structural　Co-MOF　nanosheets　were　synthesized　and　then　used　as　an　electrode　material　for　supercapacitors　for　the　first　time.　This　material　exhibited　a　high　specific　capacitance,　a　good　rate　capability,　and　an　excellent　cycling　stability.　A　maximum　capacitance　of　2564　F　g−1　can　be　achieved　at　a　current　density　of　1　Ag−1.　Moreover,　the　capacitance　retention　can　be　kept　at　95.8　%　respectively　of　its　initial　value　after　3000　cycles.　To　the　best　of　our　knowledge,　both　the　specific　capacitance　and　the　capacitance　retention　were　the　highest　values　reported　for　MOF　materials　as　supercapacitor　electrodes　until　now.　Such　a　high　supercapacitive　performance　might　be　attributed　to　the　intrinsic　characteristics　of　this　kind　of　Co-MOF　material,　including　its　layered　structure,　conductive　network　frame,　and　thin　nanosheet.　©　2017　Wiley-VCH　Verlag　GmbH　&　Co.　KGaA,　Weinheim