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Ellagic acid (EA) has aroused great interest worldwide owing to its antioxidant,anti-inflammatory,and anticarcinogenetic properties.The EA content in pomegranate leaf was measured in this study using high performance liquid chromatography to investigate the effects of season,variety,and processing method on the EA level.The results show that the EA content in 11 varieties of pomegranate from the Zaozhuang region in China range from 1.30 mg·g-1 to 6.46 mg·g-1 of dry weight in five consecutive seasons from June to October.An analysis of variance (ANOVA) shows that the EA content is significantly dependent on the season (p