Against the backdrop of the carbon peaking and carbon neutralization goals, offshore wind-to-hydrogen technology has garnered widespread attention. China is in the initial stages of the industrialization of offshore wind-to-hydrogen, making comprehensive and in-depth analysis particularly crucial. Based on the development of China's offshore wind-to-hydrogen industry, this study first examines the intrinsic motivation of its development, and analyzes the overview, technological pathways, and key equipment of offshore wind-to-hydrogen projects. Assessments are conducted on the applicable scenarios and challenges of different technological pathways and key equipment, and development recommendations are proposed. The study finds that offshore wind-to-hydrogen is an important pathway and cost-effective solution for China to achieve energy security, low-carbon transformation in coastal provinces and cities, as well as the consumption and transmission of large-scale far-offshore wind power. These benefits constitute the fundamental impetus behind China's push for offshore wind-to-hydrogen development. Currently, the global offshore wind-to-hydrogen industry focuses on verifying the feasibility of different technological pathways and key equipment. In China, the industry is guided by national major projects and dominated by large state-owned and private enterprises. Among the technological pathways, centralized offshore hydrogen production is suitable for far-offshore wind farms. In terms of key equipment, the marine environment imposes new requirements on offshore hydrogen production, storage, and transportation technologies, and a high-reliability equipment system adapted to marine scenarios still requires breakthroughs. Finally, development recommendations are proposed from three dimensions: enhancing top-level design and standards systems, fostering innovative economic incentives and a collaborative industrial ecosystem, and concentrating efforts on technological breakthroughs and talent development. Based on the analysis, this study can provide research support and pathway references for the development of China's offshore wind-to-hydrogen industry.