The　design　of　efficient　counter　electrode　(CE)　materials　for　dye　sensitized　solar　cells　(DSSCs)　strongly　depend　on　the　microstructure　construction　and　the　effective　combination　of　different　active　components.　In　this　study,　a　hollow　polyhedral　structured　NiSe2-CoSe2　composite　electrode　was　synthesized　through　the　direct　selenization　of　the　hollow　nanocage　morphology　nickel-cobalt　layered　double　hydroxide　(NiCo-LDH)　ultrathin　nanosheets,　which　was　derived　from　ZIF-67　nanocrystals.　Notably,　owing　to　the　unique　hollow　structure　and　synergistic　effect　of　the　Ni-Co　bimetallic　selenides,　the　hollow　polyhedral　NiSe2-CoSe2　CE　exhibited　the　expected　electrochemical　catalytic　activity　in　the　reduction　of　triiodide,　as　revealed　by　electrochemical　impedance　spectroscopy,　cyclic　voltammetry　and　Tafel　polarization　measurements.　The　photovoltaic　results　revealed　that　the　PCE　of　the　NiSe2-CoSe2　CE　reached　8.21　%,　which　was　higher　than　those　of　the　Pt　and　CoSe2　CEs　(7.62　%　and　6.78　%,　respectively).　Moreover,　the　hollow　NiSe2-CoSe2　CE　exhibited　a　favourable　photocurrent　response　upon　light　onand-off　cycling　and　improved　stability　over　multiple　start.　This　study　provides　a　meaningful　reference　for　the　construction　of　hollow　polymetallic　transition-metal　selenides　for　DSSC　devices.