The offshore operation technology of the oil and gas industry is the key to ensure the smooth development of offshore oil and gas resources.Optical fiber and cable and oil field sensing technology play a vital role. With its high-speed and large-capacity data transmission capacity, optical fiber and cable provides a stable and reliable communication guarantee for offshore operations. Through optical fiber and cable, the operation platform can obtain the monitoring data of submarine oil and gas Wells in real time to ensure the safety and efficiency of the operation process.Oilfield sensing technology realizes real-time monitoring and early warning of oil and gas Wells through various sensors arranged on the sea floor. These sensors can sense the key parameters such as pressure, temperature and flow of the wellhead, and provide decision support for operators to work to prevent potential safety risks.With the continuous development of science and technology, the offshore operation technology is also constantly innovating and improving. In the future, optical fiber and cable and oilfield sensing technology will continue to provide strong support for the deep-sea development of the oil and gas industry, and promote the sustainable utilization of offshore oil and gas resources.