Introduction  Under the trend of accelerating the clean transformation of coastal energy and adjusting the industrial structure, offshore wind power will become an important support for the safe, clean and efficient transformation of power energy in coastal provinces due to its rich wind resources, high number of utilization hours and convenient consumption.

  Method  In this paper, the current situation and future development prospect of offshore wind power industry were analyzed, and the comprehensive cost reduction trend of shallow-water and far-reaching deep-sea offshore wind industry was predicted.

  Result  The results show that whether the Guangdong sea area can realize connection to grid at a fair price during the 14th Five-Year Plan period is dependent on the average annual comprehensive cost reduction rate; Some far-reaching deep-sea projects in Guangdong can achieve connection to grid at a fair price by the end of the 14th Five Year Plan period, and there is still room for cost reduction under the scale effect.

  Conclusion  Offshore wind power industry chain of our country has been improved gradually, but there are still many key components and core technologies relying on imports, so it is necessary to carry out continuous localization research to effectively reduce the industrial costs.