In this paper, the contents of flavones were measured and the species of flavones were identified in Fructus clausenae Lanii. The results showed that 95% methanol was the premium solvent to digest flavones in Fructus clausenae Lanii. And that the content of flavones is 0.91 mg/ml determined with the standard sample rutin. With color reaction and fluorescence identification, it was determined that the species of flavones are flavanones, chalcones and flavonols.