The supercritical extraction machine is used in the condition of high pressure and suitable temperature to extract material (solid-liquid dual use). Changing the conditions in separator to make the material dissolved to achieve the purpose of separation. The main components of the device are as follows: extractor, separator, CO2 high pressure pump, solvent pump, cooling system, CO2 tank, heat exchanging system, purification system, flowmeter, temperature controlling system, safety protection devices. Attached equipments and system can meet the requirements of the supercritical system and flow chart.