High-paeonol-content cortex moutan extract preparation method

A cortex moutan extract preparation method includes steps: subjecting raw material cortex moutan to warm immersion or reflux extraction to obtain extract liquid, wherein water is used as a solvent; adding the extract liquid to a vacuum concentration-volatile oil collection system to obtain concentrated liquid through vacuum concentration, and adopting a volatile oil collection device for condensation collection of volatile component paeonol generated in a vacuum concentration process; adding the obtained paeonol into the concentrated liquid to obtain cortex moutan extract fluid extract; dryingthe cortex moutan extract fluid extract to obtain a final product. The paeonol content of obtained cortex moutan extract is 1.9-7.7%; the preparation method is novel, simple and convenient, prolonging extraction time is avoided, and collecting paeonol in the concentration process makes it closer to a decocting mode of clinical standard decoctions; in addition, industrial production can be easilyrealized, preparation proc