This paper introduces the architecture of the internet of things technology applied to weather modification field and the major operations of ammunition and equipment safety management. And the application of bar code, two-dimensional code and RFID tag technology in the internet of things of weather modification are also discussed. The analysis points out the key technologies such as marking and recognition, acquisition and transmission, and information fusion process of weather modification equipment. These key technologies can meet the informatization demand of weather modification operation, reduce the workload of grass-root operational staff, can improve the ability of safety supervision of weather modification operation efficiently.