The innovation and development of ground safety technology for offshore gas storage facilities are crucial for ensuring energy supply and maritime safety. This article explores the ground safety technology of offshore gas storage from three dimensions: intrinsic safety technology of ground systems, safety prevention and control technology, and monitoring and alarm technology. By selecting high-strength and corrosion-resistant high-quality materials, combined with advanced anti-corrosion technology and cathodic protection measures, the durability and stability of gas storage facilities can be improved; The wellhead and ground cutoff technology can quickly cut off the gas source to prevent gas leakage, the wellhead sand removal technology can effectively prevent the accumulation of sand and dust to ensure the normal operation of equipment, the compressor interlocking shutdown technology can quickly shut down the compressor in emergency situations to avoid accidents, and the fire extinguishing technology can quickly control the fire in the event of a fire; The fire and gas alarm system can monitor fire and combustible gas leakage in real time, the corrosion monitoring system can monitor the corrosion status of facilities in real time, providing technical support for production and maintenance. The pipeline infrasound leakage alarm and fiber optic warning system can monitor the leakage of the gas storage pipeline network, ensuring timely detection and handling. Video monitoring, robot inspection and other technologies can achieve comprehensive technological means, a comprehensive and multi-level ground safety guarantee system for offshore gas storage has been constructed, providing important guarantees for the sustainable development of offshore energy development.