Geographic Information System (GIS) as an important information technology is attracting more and more attentions and widely used in meteorological field during the past years.This paper firstly gives an overview of academic trends and technical application of GIS in meteorology and climate, and then addresses some fundamental issues for GIS further available for meteorology and climate application, such as GIS data model and meteorological data sharing, GIS spatial analysis and meteorological application model, GIS visualization and meteorological information science visualization. Lastly, it proposes some general principles and methods for constructing meteorological information system based on GIS capabilities. In conclusion, some new trends of GIS, which will be applied in meteorology, are discussed.