Hydrogen (if manufactured with renewable energy) has zero pollution, zero carbon and no secondary pollution,
is recognized as a clean energy carrier. It is known as the most promising secondary energy source in the 21st century, which
also becomes one of the most effective technical solutions to achieve “carbon peaking and carbon neutralization”. Hydrogen
will become an important part of China’s energy system. However, there are numerous complicated systems, components, and
hazardous materials used in the infrastructure during preparation, storage, transportation, processing and utilization of hydrogen.
There is still a lack of systematic research on the safety and emergency guarantee technology of hydrogen production, storage
and transportation in China, which lags behind the practical requirements of safety guarantee for industrial development.
In this paper a systemic identification of safety status, risk factors and the technical challenges during preparation, storage,
transport and supply infrastructure of hydrogen is carefully studied. The technical requirements and development planning are
proposed including but not limited to the failure and accident mechanisms, safety and integrity assessment, safety inspection,
monitoring and early warning, and the accident emergency and safeguard mechanism. It provides a theoretical basis for improv-
ing the safety and emergency support technology system of hydrogen production, storage and transportation in China.