The content of flavones in the extract of Panpax notoginseng was measured and the species of flavones were identified. The results showed that 75% ethanol was an appropriate solvent for extracting flavones from Panpax notoginseng. It was found that there was 0.015 mg/mL of flavones in the extract measured on the base of rutin as standard sample. With color reaction, it was identified that the species of flavones in the extract were flavanones.