This book introduces the principle and methodology of synoptic meteorology, which is an important branch of meteorology, studying on the weather analysis and forecasting. The content includes the features of meteorological fields and their kinetics; the basic laws controlling atmospheric motions; the relationship between wind field and pressure-temperature fields; the air masses and fronts; the cyclone and anti-cyclones; the general atmospheric circulations; forecasting of synoptic situation ,and the diagnostic analysis of weather.