The status quo，composition and characteristics of offshore wind power are analyzed.According to the problems of traditional wind power development and the actual situation of offshore wind power in China，the concept of a digital offshore wind farm is proposed，whose basic features are intelligent control and decision-making，integrated supervision and control，digital data and information，networked communication platform and standard information sharing.Furthermore，five development stages of digital offshore wind farm are given according to the technology maturity and digital level，and the technical characteristics of each stage are analyzed.Finally，a complete technical scheme and the development direction of the digital offshore wind farm are given.