Preparation method of cinnamomum kanehirae leaf extract

The invention discloses a preparation method of a cinnamomum kanehirae leaf extract, and particularly relates to the technical field of cinnamomum kanehirae leaf extraction.The preparation method comprises the following specific steps that S1, harvesting cinnamomum kanehirae leaves; s2, screening and cleaning the cinnamomum kanehirae leaves; s3, airing the cinnamomum kanehirae leaves; s4, cutting the cinnamomum kanehirae leaves; s5, proportioning the cinnamomum kanehirae leaf materials; s6, kneading the cinnamomum kanehirae leaves; s7, distilling the cinnamomum kanehirae leaves; s8, filtering the extract; and S9, separating the extract. The cinnamomum kanehirae leaf extract prepared by the method disclosed by the invention has the advantages that the content of cinnamomum kanehirae essential oil is high, the content of cinnamomum kanehirae dew is reduced, the yield is increased, the loss of raw materials is reduced, and after tender cinnamomum kanehirae leaves and old cinnamomum kanehirae leaves are fully mix