Safe and high density storage and transportation of hydrogen is considered as a bottleneck problem restricting large-scale application of hydrogen. Solid state hydrogen storage and transportation technology is an ideal hydrogen storage and transportation method with low hydrogen storage pressure and high hydrogen storage density. This report focuses on hydrogen solid state storage and transportation technology，and analyzes its technical progress and application status. The results show that although the weight and density of metal hydride hydrogen storage are relatively low and the cost is relatively high in the demonstration stage，the metal hydride hydrogen storage has strong applicability in large-scale hydrogen storage，hydrogen safe transportation，commercial vehicles/engineering vehicles and other aspects，and its cost advantage will gradually become prominent from the whole industrial chain and scale effect. The research and development of new high-capacity hydrogen storage materials is progressing rapidly，and it is expected to be popularized and applied in efficient hydrogen transport，fuel cell passenger vehicles/heavy trucks and other aspects in the future.