The　objective　of　the　study　is　to　investigate　the　bond　performance　between　corroded　steel　bar　and　concrete　subjected　to　dynamic　loadings.　A　3D　refined　simulation　model　is　established,　in　which　the　geometrical　shape　of　corroded　rebar　can　be　explicitly　described.　In　addition,　the　shape　variation　of　steel　bars　due　to　corrosion　and　the　materials　strain　rate　effect　are　also　considered.　In　the　simulations,　a　two-stage　analysis　(stage　I:　corrosion　induced　expansion,　and　stage　II:　dynamic　relative　slip)　approach　is　utilized　to　explore　the　influences　of　corrosion　and　strain　rate　on　the　dynamic　bond　performance.　Firstly,　the　corrosion　expansion　displacement　is　applied　on　concrete　surface　in　contact　with　rebar　to　simulate　the　corrosion　expansive　behavior.　After　obtaining　the　damage　pattern　of　concrete　caused　by　corrosion　and　then　taking　this　state　as　the　initial　condition,　we　apply　a　dynamic　load　on　the　loading　end　of　corroded　rebar　to　evaluate　its　dynamic　bond　behavior　between　the　corroded　rebar　and　concrete.　A　good　agreement　is　obtained　between　the　simulated　results　and　the　available　experimental　results　on　the　failure　patterns　and　corroded　bond　stress-slip　curves.　The　combined　effects　and　quantitative　relationship　between　corrosion　level　and　strain　rate　on　the　bond　behavior　are　discussed.　Also,　the　simulated　bonding　strength　and　peak　slip　present　good　consistency　with　the　available　test　data.　Furthermore,　a　modified　bond　stress-slip　model　considering　the　influence　of　corrosion　level　and　strain　rate　on　the　bond　strength　as　well　as　the　peak　slip　is　proposed.