Abstract: The impacts of unusual climate on key project and their strategies are studied in this paper. Main conclusions are as follows: Abnormal climate, with occurrence in the form of climate disasters or extreme climate events, is threatening the key project. However, the climate disasters with the features of many kinds, high frequency, regional and seasonal distribution, widespread area affected and large economic losses impact on key project in varied scope and extent. It is an effective way to study the impacts of abnormal climate on key project by establishing the meteorological preparedness system. Five aspect contents need to be studied, including the research on impacts of abnormal climate on key project in the stage of designing, construction and operation, and the research on measurements and integrated assessment of the impacts. Measurements and strategies are also one of the important division of climate change sciences. Finally, Administrative strategies in & aspects such as legislation, education and service are given. And technological strategies directly against each stage of key project are probed in this research.

Key words: abnormal climate, key project, strategies and measurements