Abstract: 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.