Abstract: The constrast research on the analytical methods of the flavonoid compounds in different parts of Ginkgo biloba L were studied by using Soxhlet’s extracting method, spectrophotometer and HPLC were adopted to analyze the products. The Ginkgo flavoinoid contents assayed by the spectrophotometer and HPLC were compared so as to find a more accurate determination methods for Ginkgo flavoinoid. The result was that the content of Ginkgo flavoniod detected by spectrophotometer was generally higher than that of HPLC. But HPLC showed the advantages of little interference and good fidelity, and better expression of the immanent quality. So the HPLC was more rapid, accurate and reliable.

Key words: Ginkgo biloba, Ginkgo flavoniods, distribution of content, analytical methods