Abstract: The wind field between the two office buildings of Jilin Meteorological Office in 2012 was measured and the results were compared with the wind data observed at a meteorological station in Changchun.The results show that a tunneling effect exists between the two office buildings,which results in the convergence of wind.The wind field between the two office buildings simulated using the CFD technology (the Fluent software) is generally consistent with the real wind field.The annual average wind power density calculated from the simulated wind field is 139.0 W·m^-2,with the largest wind speed area occurring at a 40 m height around the top wind exit between the two office buildings,which means the probability to explore wind power at this observational site.Meanwhile,it is feasible to evaluate wind power around buildings using both of real observations and CFD simulation.