The invention relates to an extraction technology of active ingredients in 
geranium wilfordii which is one Chinese 
medicinal herb. The purpose of the invention is to provide an economic and rapid method for extracting 
polyphenol active ingredients in 
geranium wilfordii through high-efficiency 
enzyme induction. The invention adopts a 
homogenizer fragmentation high-efficiency 
enzymatic hydrolysis technology and combines a negative-pressure 
cavitation assisted extraction technology to obtain 
geranium wilfordii extract rich in three kinds of 
polyphenol active ingredients. According to results, the maximum content of total 
polyphenol active ingredients in the extract can reach 156.14mgGAE / g, the maximum contents of three main polyphenol active ingredients, i.e. 
gallic acid, 
Corilagin, Geraniin can respectively reach 9.58mg / g, 6.87mg / g and 19.82mg / g, and the contents are improved by 30-67 percent when compared with a traditional hot 
reflux method. The invention has the advantages that the high-temperature heating is not required, the 
organic solvent is not required, the 
extraction ratio is high, the environment is protected, the operation is safe, the method is suitable for industrialized production, and a novel method and a novel means are provided for the modernization of Chinese 
medicine extraction.