To summarize chlorogenic acid in absorption site and mechanism,metabolic site and pathways,and effect on pharmcokinetic parameters of chlorogenic acid with crude drugs compatibility.Recent relevant information and references were summarized,and further analyzed and reviewed.The current study showed that chlorogenic acid could be absorbed in the stomach,small intestine and large intestine,which was absorbed into the bloodstream in the original form by the stomach and small intestine.In addition,the absorptio...