Mobile biomass liquefaction system

The disclosed mobile biomass liquefaction system comprising: a biomass gasification furnace, a fuel decontamination plant, a fuel generating set, a biomass pyrolysis furnace with heat from the firing of gasified fuel and incondensable gas, a cooling tower, and a pretreatment device. This system realizes complete self-support for energy, can convert the biomass into bio-oil locally for further centralized treatment, and has high operation efficiency for wide application range.