When projectile launched by ground operations for weather modification did not burst in the air and land, it would damage to the ground personnel or important facilities. In order to avoid the damage, using remote sensing image, global positioning system and geographic information technology, this paper designed and developed an analysis system for safe firing area of antiaircraft guns and rocket. The system extracts the object information from the highresolution remote sensing image of Spot in the system database and the GPS positioning information of the operation terminal system. Combined with the trajectory parameters of different types of rocket and antiaircraft guns, this article analyzed the safe firing area. The results of firing area analysis are intuitive, reliable, convenient and quick operation, providing a scientific basis for safety of ground operations for weather modification.