Based　on　viscoelastic　peridynamic　method,　a　numerical　model　of　a　three-point　bending　concrete　beam　with　an　initial　crack　is　established　in　this　work,　whose　accuracy　and　rationality　are　verified　by　comparing　the　fracture　modes　calculated　by　this　model　with　the　experimental　results.　The　paper　analyzed　the　angle　of　crack　propagation　and　the　evolution　of　energy,　displacement,　strain,　and　strain　rate　in　the　beam　by　the　verified　numerical　model,　while　a　total　of　24　numerical　examples　with　different　initial　crack　positions　and　loading　velocities　are　simulated,　based　on　which　the　coupling　influence　law　of　the　initial　crack　and　loading　velocity　on　the　fracture　mode　of　the　beam　is　obtained.　This　paper　reveals　the　dynamic　fracture　mechanism　of　the　three-point　bending　concrete　beam　with　an　initial　crack,　and　further　assesses　the　features　and　superiorities　of　the　viscoelastic　peridynamic　method　by　the　agency　of　numerical　experiments.　Thus　far,　it　has　been　certified　that　the　developed　viscoelastic　peridynamic　mothed　can　fairly　consider　the　impact　of　the　initial　crack　and　loading　velocity　on　the　bearing　capacity,　deformation,　and　fracture　properties　of　the　concrete　structure.