Abstract:The research and application of crop growth simulation models in agro meteorolo gical services were carried out in recent years in China.The necessity of applyi ng crop growth simulation models to agro meteorological services was analyzed o n the basis of reviewing application of crop growth simulation models around the world and the state of agro meteorological services in China. The methodology of localization research of foreign models and the approach of applicationof model from single site to regional scale were discussed. It is focused on the progres s in application of crop growth simulation models to agro meteorological servic es in China, and effect assessment of meteorological condition on crops growth and dynamic forecasting of crop yield by using maize growth modal in North East China, wheat growth model in North China and double cropping rice model in the middle Yangtze River valley. Finally, the existing problems and possible resolut ion in applying crop growth simulation models were proposed from mechanism impro vement, regional scale application, as well as operational implement.