TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Material: The biomass raw material is solid biomass raw material and liquid biomass raw material. The solid biomass raw material is forestry or agriculture ignitable solid offal and ignitable material in domestic waste. The liquid biomass raw material is waste edible oil, plant oil, and animal oil and fat. Preferred Method: The non-combustible component in solid biomass waste and domestic waste is separated. Dust and other impurities in waste material is purified using pure water or rare acetic acid aqueous solution (5-20 wt.%) for 10-100 minutes. The weight ratio of rare acetic acid aqueous solution and raw material is 1-10:1. The base material is dried at 60-90degrees C, after smashing for less than 60 times. The dried product is mixed with circular oil, and then subjected to pre-treatment in sliming processor. The sliming biomass raw material reaction liquid is divided into two portions. A portion of sliming biomass material (15-30 mass%) is supplied to high pressure reactor directly and pressurized at 0.15-30 MPa. The other portion of sliming biomass material is heated in a heat exchanger at 230-460degrees C, supplied to high-pressure reactor through a pipe, and pressurized at 0.15-45 MPa. The pressurized products are mixed with each other. The liquid biological fuel product produced by reaction in high pressure reactor is cooled and decompressed continuously in a decompressing cooler, and light oil, water, critical alcohol liquid product and non-condensable gas are obtained. The gas is used as chemical industry raw material or fuel. The liquid product is transferred to separator is separate alcohol and water, non-reactive biomass solid grains and impurities and biomass oil. The produced alcohol or wastewater is purified in a purger for 4-30 hours. The external heating of reaction product is carried out through a hot oil boiler heating equipment. Preferred Conditions: The sub-critical liquid conversion reaction is carried out at 255-350degrees C and pressure of 0.15-20 MPa for 5-90 minutes. The super-critical liquid conversion reaction is carried out at 250-450degrees C and pressure of 8-40 MPa for 2-40 minutes.