Abstract: Hydrogen energy is an important energy carrier for China to achieve the target of "carbon emission peak before 2030 and carbon neutrality before 2060", while the lack of motivation for infrastructure development is a critical factor in restricting the large-scale development of hydrogen. Blending hydrogen with natural gas and injecting the hydrogen enriched compressed natural gas (HCNG) into the national natural gas pipeline networks can help realize inter-provincial transportation and utilization of hydrogen, which can effectively promote the large-scale consumption of renewable energy and facilitate the early realization of China's carbon reduction target. In this context, this paper comprehensively explored the application prospect of HCNG related technologies in China. Firstly, this paper evaluated the potential of HCNG in the process of China's carbon emission reduction from several aspects; secondly, technical and economic analysis was carried out for technologies related to the HCNG supply chain; subsequently, the multi-stage development path of HCNG penetrated integrated energy system (HPIES) was prospected; in the end, a series of key problems that may exist in the process of HCNG development were expounded.