This study provides a novel and promising research direction for the high efficient and high value-added electrocatalytic conversion of biomass coupled with low cost hydrogen production, which has important theoretical and practical significance for promoting the development of hydrogen production technology by proton exchange membrane electrolysis and catalytic conversion of high value-added biomass. In short, we hope that solar photocatalysis can be used in the future to replace thermal catalytic biomass oxidation to formic acid, so as to reduce energy consumption and environmental pollution to a greater extent.