Among　clean　energy　catalysts,　nanocube-structured　functional　materials　with　complex　exterior　texture,　whose　components/morphologies　can　be　easily　regulated,　have　attracted　much　attention.　Hereon,　we　report　the　morphology-controllable　Co3S4/MoS2　co-doped　nanocubes　(Co3S4/MoS2　NCs)　derived　from　cobaltic　Prussian-blue　analog　(Co　PBA).　The　synthetic　process　of　these　nanocubes　could　be　controlled　by　the　reactant　ratios　(1/1,　1/2　and　1/3)　of　Co　PBA　to　(NH4)(2)MoS4.　In　this　process,　(NH4)(2)MoS4　acted　as　a　multifunctional　vulcanizator,　which　could　conveniently　afford　Mo　and　S　elements　at　the　same　time.　As　the　increment　of　(NH4)(2)MoS4,　the　exterior　texture　of　Co3S4/MoS2　NCs　became　rougher　with　more　embedded　tiny　nanoparticles.　When　the　ratio　was　set　as　1/2,　the　as-obtained　Co3S4/MoS2-2　nanocubes　exhibited　good　catalytic　property　in　dye-sensitized　solar　cells　(DSSCs).　Notably,　the　DSSC　with　Co3S4/MoS2-2　counter　electrode　(CE)　showed　a　better　efficiency　of　8.96%　than　that　of　Pt　CE　(7.77%)　under　standard　conditions.