The invention discloses an extraction method and a use of a cyperus esculentus general flavone capable of enhancing microcirculation. The terrestrial stem and leaf parts of the cyperus esculentus are taken as raw materials and the general flavone is extracted from the raw materials by use of a dynamic ultrahigh-pressure micro-jet assisted extraction technique; the extraction process is improved, and the parameters of the ultrahigh-pressure micro-jet assisted extraction technique are as follows: the micro-jet processing pressure is 120MPa, the extraction temperature is 80 DEG C, the ethanol concentration is 80%, the extraction time is 90 minutes and the extraction yield is 1.46%; the in-vivo and in-vitro oxidation resistance, antibacterial activity, anticoagulant activity and microcirculation enhancing function of the cyperus esculentus general flavone extract are studied to confirm that the cyperus esculentus general flavone has excellent in-vivo and in-vitro oxidation resistance, and the extracted cyperus esculentus general flavone has antibacterial activity on bacillus subtilis and escherichia coli, but no obvious antibacterial effect on black mold and aspergillus, and also has anticoagulant activity and obvious effect of enhancing microcirculation; as a result, the cyperus esculentus general flavone has wide application value.