The invention relates to 
ainsliaea fragrans champ 
caffeoylquinic acid extracts and preparation and application thereof. The 
ainsliaea fragrans champ 
caffeoylquinic acid extracts are prepared by the following steps of: performing refluxing extraction of the 
ainsliaea fragrans champ by using 
ethanol, filtering, concentrating and removing 
ethanol, adjusting the pH value to 1 to 3 by adding 
hydrochloric acid, applying macroporous adsorbent resin, water-washing, adding 
ethanol for 
gradient elution, and collecting eluent, of which the ethanol concentration is 50 to 70 percent; performing condensation and ethanol removal, adjusting the pH value to 1 to 3 by adding 
hydrochloric acid, using macroporous adsorbent resin, adding water and ethanol for 
gradient elution respectively, and collecting the eluent, of which the ethanol concentration is 40 to 70 percent; mixing the eluent, and 
vacuum drying the eluent to obtain the extracts. The UV content of the 
ainsliaea fragrans champ 
caffeoylquinic acid extracts is over 70 percent, the HPLC content is over 50 percent, and the content of 3-caffeoylquinic acid and the content of 3,5-
dicaffeoylquinic acid are both over 10 percent. The 
ainsliaea fragrans champ caffeoylquinic acid extracts have the effects of resisting inflammations, 
bacteria, medicament-resistant strains, well improves pathologically changed tissues of rat suffering from 
cervicitis, obviously reduces the 
uterus index and the number of leukocytes and can be independently prepared into the medicaments for treating 
cervicitis or combined with other medicaments to prepare the medicaments for treating 
cervicitis.