Abstract:In order to evaluate the antioxidant activity of fruits of Actinidia arguta（A.arguta）from different resources，a total of 32 fruits of Actinidia arguta from different resources were studied，and their total phenols，total flavonoids，vitamin C，anthocyanin content，DPPH radicals，hydroxyl radicals，superoxide anion radical scavenging rate，total antioxidant capacity，and total reducing capacity were determined.In addition，difference analysis，weighted comprehensive evaluation，correlation analysis，and principal component analysis were conducted.The results showed that the total phenol，total flavonoid，vitamin C，and anthocyanin contents of the fruits of A.arguta from different resources were different.Their antioxidant capacity was comprehensively evaluated，and the top five resources were B080401，A180902，A100703，B020802，and A100101.The total phenol and vitamin C contents contributed more to the antioxidant activity of A.arguta，and four assays，namely，DPPH radical scavenging rate，superoxide anion radical scavenging rate，total antioxidant capacity，and total reducing capacity，were suitable for the determination of the antioxidant capacity of fruits of A.arguta from different resources.Total phenolic content，total flavonoid content，vitamin C content，DPPH radical scavenging，hydroxyl radical scavenging，superoxide anion radical scavenging，total antioxidant capacity，and total reducing power were the main determinations of antioxidant capacity of A.arguta.