This study aimed to investigate the correlation between the content of active substances and antioxidant activity in three kinds of Aronia Melanocarpa. The total phenolic content was determined by Folin-Ciocalteu method, the anthocyanins content was determined by pH-different method, and the flavonoids was determined by Al(NO₃)₃-NaNO₂ system method. Then, determining the DPPH^＋· scavenging capacity, ABTS^＋· scavenging capacity and reducing power of active substances. It was shown that the phenolic content ranged from 11.916 to 14.550 mg GAE/g·FW, which have the best antioxidant properties, the DPPH^＋· scavenging capacity and ABTS^＋· scavenging capacity of polyphenols in Elliott was the strongest, while Kelan have stranger reducing power; the anthocyanins ranged from 3.094% to 3.771%, the anthocyanins in Elliott exhibited the best antioxidant properties; the flavonoids ranged from 19.519 to 23.399 mg RE/g·FW, The DPPH^＋· scavenging capacity of flavonoids in Kelan was the strongest, Elliott possessed the strongest ABTS^＋· scavenging capacity, while Viking have stranger reducing power. Correlation analysis showed that there were positively correlations between the anthocyanins content and antioxidant activity, including DPPH^＋· and ABTS^＋· scavenging capacity; meanwhile significant positive correlation were observed between ABTS^＋· scavenging capacity and the flavonoids content; but no significant correlations were found among the rest of the index.