Abstract: The development of the technical standards and the establishment of a standards system of grid integration of renewable energy will play a important role in promoting the utilization of renewable energy and achieving the goal of "Carbon Peak and Carbon Neutrality" in China. The standards system is one of core basic elements facilitating the development of renewable energy industry. On the path to an carbon neutrality goal, the status and importance of renewable energy represented by wind power and photovoltaic in the power system have been recognized, especially offshore wind power has gradually become an important aspect in promoting energy transformation with its own advantages. Firstly, the characteristics and technical challenges of offshore wind power grid integration project in the field has been introduced and the standardization process has been summarized. From the perspective of AC grid connection and DC grid connection, taking standardization as the main line, this paper elaborates the key technologies and standardization development and application of planning and design, test and detection, grid connection control of offshore wind power. Finally, the future technology development trend and standardization activities of offshore wind power grid integration are prospected. The discussion and research on the standardization of offshore wind power grid integration will provide strong guarantee and support for scientific and reasonable grid integration standard system and the operation of power grid safely.