Geographic maps are the basis in weather information analysis.However,the limitations in 2D geographic map,such as complexity and distortion in projection,lack in integration,all impose restrictions to the integrated management of multi-scale and multi-resolution meteorological information,which will result in the isolation between meteorological service,meteorological research and meteorological product.Three basic issues in integration of meteorological information in digital earth are put forward,including unity of space benchmark,earth ellipsoid subdivision for spherical integration of weather information,and theory & algorithm for meteorological information transformation from 2D to Earth ellipsoid.Technological approaches towards above issues are also discussed.