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According to the specific geographic conditions of the cement concrete seawall, there is not much experiences currently for reference about how to install the necessary equipment for the lightning protection of the ground wave radar systems installed on the seawall. Appying the basic principles of the equipment lightning protection technology system, referring to the relevant technical specifications of lightning protection, through theoretical research, combined with the characteristics of the ground wave radar and the repeated tests, as well as the local conditions, the lightning protection engineering project of the ground wave radar is designed and implemented. After more than two years of continuous operation, the radar worked satisfactorily.