An update review on the research progress of hydrogen production from thermo-chemical gasification of biomass in supercritical water（SCWG）heated by concentrated solar energy at home and abroad is presented.Following a description of the solar thermo-chemical hydrogen methods，a hydrogen production method by SCWG is introduced，including the hydrogen production principles，kinetics and mechanisms of biomass gasification reaction，development status of SCWG and so on.Then，the principles，advantages，key technologies，the composition of the system and the latest development of SCWG using concentrated solar energy are shown，and the above technology integrated different theories and technologies，such as solar energy concentration，energy transfer and storage technologies.Finally，the further development trends and research contents of this technology is pointed out.