The aim of this study was to evaluate antioxidant properties of Manilkara zapota.The results of this studies revealed that methanol extracts of bark , fruit and leaves of Manilkara zapota have been reported to possess antioxidant activities. Ethyl acetate fraction of bark extract (BE) exerted strong antioxidant activities with EC values of BE were 1.42, 4.83 and 53.2 µg/ml in 50 + DPPH, ABTS˙ , superoxide radicals scavenging methods, respectively. The bark of Manilkara zapota may be utilized as effective and safe antioxidant source searching for further bioactive compounds.