In order to enhance automatization of rocket operation in weather modifi cation, a longrange controlled automated rocket operation system of weather modificati on was constructed based on GIS, GPS and GPRS technology. The system takes radar as its main command means and integrates radar image analysis, early warning, o peration command, rocket state, data communication and rocket management togethe r. This system transfers operation instructions formed from command centre to th e operating rocket site by wireless communication, and realizes automatic azimut h and elevation circumvolution and automatic launch of the longrange controlle d rockets. Meanwhile some problems are well solved, such as complicated rocket o peration, unscientific parameters design, incomplete operation record, slow inst ructions transmission and so on. The application of this system provides authent ic and reliable data for operation effect test. It fills up the blank of ground automated operation instrument in the field of weather modification in China.