Abstract: Introduction The paper aims to design the AC/DC integration scheme of offshore wind farm. Method Firstly,this paper analyzed the problems of standby time selection, reliability of communication power supply, reliability of inverter power supply and DC/DC power trip problem. Then according to the code requirement, the paper calculated and deployed the AC/DC integration scheme on the basis of a specific offshore wind farm project. Result Finally,this paper elaborates the design of AC/DC integration scheme of offshore wind farm booster station and land control center. Conclusion In conclusion, we can see that the offshore wind farm AC-DC integrated power supply design program can simplify the structure of the power supply equipment, save the installation space and investment cost, improve the reliability, availability and maintainability of the station power, and has a certain degree of engineering application value.