NOVELTY - Biomass hydrothermal carbonized cogeneration of bio-oil comprises e.g. adding biomass and water in mixing groove, stirring, forming biomass suspension, pumping the biomass suspension using high pressure pump into the heat exchanger, carrying out heat exchange, entering into carbonizing reaction kettle for hydrothermal carbonization reaction to obtain solid product and gas-liquid product, purifying the solid product in high pressure sedimentation tank to obtain coke charcoal powder, discharging biochar from high pressure sedimentation tank bottom outlet, and discharging gas liquid product.    USE - The method is useful for biomass hydrothermal carbonized cogeneration of bio-oil (claimed).    ADVANTAGE - The method realizes continuous production of biological oil, and can realize industrial production.    DETAILED DESCRIPTION - Biomass hydrothermal carbonized cogeneration of bio-oil comprises adding biomass raw material and water into an mixing groove, stirring, forming biomass suspension, pumping the biomass suspension using high pressure pump into the heat exchanger, carrying out heat exchange, entering into carbonizing reaction kettle for hydrothermal carbonization reaction to obtain solid product and gas-liquid product, purifying the solid product in high pressure sedimentation tank to obtain coke charcoal powder, discharging biochar from high pressure sedimentation tank bottom outlet, discharging the gas liquid product from high pressure sedimentation tank bottom part, and entering into the heat exchanger, flowing the biomass suspension into the gas-liquid separator, separating the gas-liquid product into gas phase, liquid phase and oil phase, discharging gas phase from top part of the gas phase outlet as carbonization reaction kettle fuel for heating, and discharging oil phase from the gas-liquid separator bio-oil outlet to obtain bio-oil.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the biomass hydrothermal carbonized cogeneration process of bio-oil.