Metallic　Zinc　(Zn)　has　attracted　great　attention　as　a　promising　anode　for　aqueous　batteries　owing　to　its　high　theoretical　capacity,　low　cost,　and　high　natural　abundance.　However,　Zn　anode　suffers　from　a　crucial　challenge,　namely　the　growth　of　Zn　dendrites,　which　brings　not　only　a　short　life　span　but　also　severe　safety　concerns.　In　this　work,　we　report　that　anionic　tin　sulfide　nanosheets　(TS-Ns)　server　as　electrolyte　additive　to　mitigate　the　dendrite　growth.　The　negatively　charge　TS-Ns　can　attract　the　positive　Zn2+　from　the　electrolyte　through　electrostatic　interaction　and　increase　the　local　concentration　of　Zn2+.　Moreover,　TS-Ns　can　co-deposit　with　Zn2+　at　the　initial　deposition　stage　and　then　form　an　interfacial　protection　layer　around　the　Zn　surface,　guiding　the　uniform　deposition　of　Zn　on　cycling.　The　TS-Ns　additive　endow　the　Zn　anode　with　excellent　performance,　reflected　by　stable　cycling　for　3700　h　in　a　symmetric　cell　with　a　capacity　of　0.2　mAh　/cm(2)　and　for　500　cycles　in　an　asymmetric　cell　with　an　average　coulombic　efficiency　of　99.6%.　These　merits　bring　high　capacity　and　low　polarization　in　Zn　parallel　to　Mno(2)　full　cells.　We　believe　that　TS-Ns　additive　provides　a　new　pathway　to　achieve　high-performance　Zn　metal　anodes　in　aqueous　electrolytes.