According　to　the　complexity　of　the　surface　environment,　the　diversity　of　building　body,　the　wind　flow　around　building　usually　has　the　disorder　and　irregular.　It　will　lead　to　the　complex　and　ever-changing　series　of　studies　that　are　difficult　to　predict.　In　this　paper,　FLUENT　software　was　applied　to　carry　out　the　numerical　simulation　of　wind　effects　of　single　building　and　simulate　the　three-dimensional　flow　field　and　surface　wind　pressure　coefficients　of　single　building.　The　numerical　simulation　results　were　compared　with　the　results　of　wind　tunnel　examples,　the　method　proposed　in　the　paper　proved　to　be　effective　and　feasible.　Based　on　this,　the　effect　factors　of　wind　load　environment　were　analyzed.