Gnetum gnemon L. in the family Gnetaceae is locally known as `melinjo or belinjo`. It has been grown in South East Asia countries such as Indonesia, Malaysia, Thailand and the Philippines for small scale food industries such as simple foods, biscuits or crispy chips. Almost all parts of this plant from mature fruits to young leaves or shoots are widely found to have anti-asthmatic, anti-inflammatory properties and can reduce constipation. The antioxidant properties of leaves and bark of G. gnemon were biochemically studied using ferric reducing power assay. The leaves and bark of G. gnemon were extracted using methanol, ethanol, boiling water, hexane and chloroform. The highest antioxidant property in the leaves was in water extract (80.89%) while the lowest was in hexane crude extract (61.61 %) at concentration of 300ug/ml. The highest antioxidant activity in the bark was in ethanol crude extract (72.61 %)while the lowest was in chloroform crude extract (46.67%) at concentration of 300ug/ml. From the results it showed that the water leaf extract gave the highest antioxidant activity than bark crude extract. It also showed that local G. gnetum could be another potential source of natural dietary antioxidant to replace several synthesized antioxidant that might have carcinogenic effects.