Abstract: Twenty different lines of wild apple (Malus sieversii) collected from different places in Xinjiang, China were used as research objects. Total total polyphenol content was measured using the Folin- Ciocalteau method. Total flavonoid content was measured by spectrophotometer. Total antioxidant capacities were analyzed by ABTS assay, DPPH assay, and iron ( Ⅲ) to iron ( Ⅱ) reducing power assay, and the correlation between the various indicators was measured with Pearson correlation coefficient. It was found that HDM-23 had the highest total polyphenol content (4714.33μmol gallic acid/100 g fresh matter) , and XY-31 contained the highest amount of total flavonoid content (2452.84 mg rutin/100 g fresh matter) . The present study implied that total polyphenols contribute to the antioxidant properties of the wild apple (p<0.01) and total flavonoid was an important phenolic compound in the wild apple varieties investigated.