The　good　bond　property　is　the　base　for　rebar　and　concrete　to　work　together,　influencing　the　mechanical　behaviour　of　reinforced　concrete　structures.　To　investigate　the　bond-slip　performance　between　deformed　steel　bars　and　concrete　under　dynamic　loadings,　a　three-dimensional　meso-scale　numerical　model　was　established,　considering　the　inherent　heterogeneity　of　concrete　and　explicitly　modelling　the　surface　characteristics　of　the　rebar.　The　interaction　between　the　rebar　and　concrete　was　implemented　by　the　surface-to-surface　contact　strategy.　The　strain　rate　effect　of　materials　was　also　taken　into　account.　The　rationality　and　accuracy　of　the　proposed　model　were　verified　by　the　good　consistency　between　the　simulation　and　available　test　results　in　terms　of　failure　pattern　and　bond　stress-slip　curves.　With　the　help　of　the　meso-scale　model,　the　bond-slip　behaviour　under　various　loading　rates　was　simulated　and　analysed.　Finally,　a　simplified　model　to　describe　the　dynamic　bond　stress-slip　relationship　was　developed.　It　has　been　found　that　due　to　the　propagation　of　stress　waves,　the　cracking　process　of　the　specimen　varies　with　the　strain　rate　while　the　final　failure　pattern　is　similar,　exhibiting　splitting　type　failure.　Thus,　a　considerable　part　of　pull-out　loading　was　resisted　by　the　inertia　of　the　system　at　the　initial　stage.　With　the　increase　of　strain　rate,　the　shape　of　the　dynamic　bond　stress-slip　curves　is　similar　with　a　significantly　increased　bond　strength　and　reduced　slip,　especially　at　high　strain　rates.　The　ratio　between　the　residual　and　peak　bond　stress　is　approximately　constant,　irrespective　of　strain　rate.　The　proposed　simplified　model　is　able　to　effectively　characterize　the　dynamic　bond　stress-slip　relationship　between　the　deformed　rebar　and　concrete.