Abstract: The virtues of the numerical simulation technologies of wind engineering were introduced firstly. Secondly, the state of art and the latest research results of several basic topics of the computational wind engineering, including the influences of the turbulence models and the numerical parameters, the numerical simulation of the equilibrium atmospheric boundary layers as well as the appropriate computation model constructions for complex building structures, were introduced respectively.Then, the research results and their applications of the numerical simulation techniques on solving the problems of wind loads and wind environment were exhibited combing with relevant practices.At last, some expectations on the computational wind engineering and its applications were given. Some of the results introduced in the paper were the latest theoretical and practical summarizations by the authors, therefore, it would be referential to the numerical simulation researches of wind engineering on building structures.