Photoelectrochemistry (PEC) transfers photoexcited electrons from the photocatalyst to the cathode via a wire, to keep away from, to a substantial extent, the recombination of cost carriers in solitary photocatalysis. The average bias additionally consumes much less vitality than electrocatalysis, rendering PEC a inexperienced and promising transformation strategy. PEC biomass conversion could be carried out at a decrease bias than PEC water splitting, and biomass holds nice potential for valorization because the world’s largest renewable useful resource. In recent times, there was an escalating curiosity within the examine of PEC valorization from the sacrifice of biomass, however only some evaluations have systematically and particularly addressed it. This evaluation discusses the conversion mechanism of organics, catalyst and system configuration, and the impact of different variables intimately primarily based on completely different constructions and varieties of biomass substrates. A quick outlook on the event of the sector is printed in the long run as effectively, and PEC is anticipated to be an alternate low-carbon, energy-saving, multi-objective path to biomass valorization.