Abstract:Reviewing the past 60 year developmental course of weather forecast and summarizing its successful experiences we can point out that the modernization development of weather services is basically characterized by the more fineness of weather forecast, and meantime it has taken the forecast accuracy as fundamental requirement on the basis of the strengthening forecast fineness at time and space scales. The 60 year practical experiences of weather forecast have indicated that the modernization process of weather services receives benefits from the following aspects: (1) the development of theories in atmospheric sciences; (2 ) the progress in modern meteorological science and technology; (3) the improvement of meteorological operation system; and (4) the increasing needs of weather services. Facing the further development of modern weather forecast, we put forward the four key problems needed for consideration:（1) the key role played by numerical weather prediction technique; (2 ) the professional system of forecast technique; (3) the integrated forecast operational procedures; and (4) the forecaster team with expert characteristics. All the aspects mentioned above should be the main tasks for developing the modern weather forecast.