氢能产业是实现终端用能绿色低碳转型的重要依托，而氢能输送效率是现阶段制约氢能产业发展的瓶颈环节；天然气管道掺氢输送可在短期内提升氢能的时空调配规模与效率，为扩大氢能应用规模提供解决方案。本文在界定天然气掺氢产业链范畴的基础上，探讨了发展天然气掺氢产业在推动氢能产业发展、解决可再生能源消纳、保障能源供应安全、实现终端用能深度减碳、推动能源科技创新等方面的重要价值；梳理了天然气掺氢产业的国际进展、国内现状，据此凝练了掺氢比例、管材及终端设备适应性、安全性、经济性等关键问题。研究建议，加强天然气掺氢产业顶层设计，构建适合我国国情的天然气掺氢产业安全监管、技术与运营管理标准体系；以政府引导、企业主导、多方参与、利益共享为原则，积极布局掺氢天然气示范项目；探索形成掺氢天然气多元化应用场景与商业模式，培育健康可持续的天然气掺氢产业生态圈，从而稳步推动掺氢天然气产业规模化发展。

The development of hydrogen industry is crucial for realizing the green and low-carbon transformation of terminal energy consumption. The efficiency of hydrogen transportation is key to the development of hydrogen industry. Blending hydrogen in natural gas pipelines can improve the scale and efficiency of hydrogen distribution in a short period of time, and it provides a solution for expanding the scale of hydrogen application. Based on defining the industrial chain of hydrogen blending in natural gas pipelines, the paper discusses the values of developing the blending industry in terms of promoting the hydrogen industry, resolving renewable energy consumption, ensuring energy supply security, realizing the deep carbon reduction of terminal energy consumption, and encouraging energy technology innovation. Moreover, the paper summarizes the international progress and domestic current status of the blending industry. It unravels key issues regarding the hydrogen blending proportion, adaptability of pipes and terminal equipment, and their safety use and technical economy. Furthermore, we propose the following suggestions: (1) strengthening the toplevel design, (2) building a standards system for safety supervision as well as technology and operation management of hydrogen blending in natural gas pipelines, (3) actively deploying demonstration projects through multi-participation, and (4) exploring diversified application scenarios and business models, thereby cultivating a sustainable industrial ecosystem to steadily promote the scaled development of the industry.