Under the environment of too high air temperature,the cooling effect of outdoor condenser of air-cooled conditioning units becomes poorer.In order to reduce the import air temperature and improve the condenser cooling condition,nozzles were installed to spray water to the condenser.The spray cooling of the condenser was numerically simulated by using CFD software and its effect on the outside environment air temperature field and the temperature distribution at different points under different water flow and different spray angle was analyzed.The simulation shows that the outside environment air temperature is reduced and along with the increase of spraying amount and spray angle,the temperature distribution at various points on the import wind section becomes more uniform.The condenser cooling ability is improved.