Zinc　electrode　stability　is　one　of　the　major　problems　that　restrict　the　wide　application　of　secondary　zinc-based　batteries.　In　this　work,　the　impacts　of　flowing　electrolyte　on　the　suppression　of　zinc　dendrite　are　systematically　investigated　through　experimental　and　numerical　investigations.　In　a　static　electrolyte　condition,　the　stability　of　the　zinc　electrode　increases　with　an　increase　of　the　applied　current　density.　In　the　presence　of　flowing　electrolyte,　the　lifespan　of　the　zinc　electrode　at　the　current　density　of　10　mA　cm−2　increases　dramatically　from　900　cycles　in　the　static　electrolyte　to　2580　cycles　with　a　flow　rate　of　30　rad　min−1,　and　further　increases　to　4725　cycles　when　increasing　the　flow　rate　to　50　rad　min−1.　Moreover,　by　changing　the　inlet　flow　direction　from　the　side　to　the　bottom,　a　more　stable　electrode　with　the　lifespan　of　18000　cycles　(1200　h)　is　achieved.　The　numerical　calculation　illustrates　that　the　distribution　of　zincate　ions　is　more　uniform　in　the　presence　of　the　flowing　electrolyte,　which　is　the　key　to　the　dendrite　suppression.　Thus,　with　the　implementation　of　flowing　electrolyte,　a　stable　zinc　electrode　with　an　ultralong　lifespan　is　demonstrated,　which　is　promising　for　practical　applications.　©　2020　Elsevier　B.V.