Abstract:To study the antioxidant activity of different varieties of rose hydrosols. Five kinds of rose petals were used as experimental materials，and the content of total phenols，total flavonoids，and antioxidant activity of different rose hydrosols were measured. The results showed that the antioxidant activity of rose hydrosol of variety ′Fenghua 1′ was the strongest，followed by ′Zizhi′，and the antioxidant activity of ′Dianhong′ rose hydrosol was relatively weak. The DPPH free radical scavenging rate and ABTS+ free scavenging rate of rose hydrosol of variety ′Fenghua 1′ were the highest，72.42% and 83.85%，respectively，and the FRAP reducing power value was the highest；the content of total flavonoids was also the highest；the hydroxyl free radical scavenging rate of ′Zizhi′ rose hydrosol was the highest，68.65%，and the content of total phenols was the highest.There was a positive correlation between the two kinds of antioxidant substances and the four kinds of antioxidant indexes，and total phenols and total flavonoids played an important role in scavenging free radicals and achieving antioxidation.