Amelanchier asiatica fruits have been used as a traditional medical food. This research was investigated to assess angiotensin converting enzyme, xanthine oxidase (XOase) and elastase inhibitory activity and antioxidant activities. The content of total phenolic compounds in A. asiatica fruits extracts was 17.6 mg/mL. In extracts, the electron donating ability by 1,1-diphenyl-2-picrylhydrazyl free radical scavenging test of A. asiatica fruits extracts was 90.18% at 200 µg/mL. The 2,2'-azinobis(3-ethylbenzothiazoline-6-sulfonic acid radical decolorization of A. asiatica fruits extracts was 98.81% at 200 µg/mL. The inhibition rate of the antioxidant protection factor was 1.03, and thiobarbituric acid reactive substance was 73.27% at 200 µg/mL. The XOase inhibition activity of A. asiatica fruits extracts of showed to be 13.19% at 200 µg/mL. The angiotensin converting enzyme activity was significantly inhibited by A. asiatica fruits extracts as 82.52% inhibitory rate at 200 µg/ mL. Elastase inhibitory activity in the A. asiatica fruits extracts (41.48% at 200 µg/mL) was higher than vitamin C (12.8% at 200 µg/mL). These results suggests that A. asiatica fruits extracts have the greatest property as a functional food and functional cosmetic source.

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