The study is related to phytochemical analysis andexamination of antioxidant property of root with barkof Syzygiumstocksii(Duthie). Itoccurs in Ratnagiri region of the Maharashtra,India. Qualitative analysis of the phytochemicals was carried using known protocol and the in this we have calculated the phenolic and flavonoids present in plant by the protocol which are reportedin the reference. While the antioxidant activity was carried using the known (DPPH)assay. Thephytochemical constituent’s and activitydiscoveredin root and bark or stem fraction of the plant shows the presence of the usual and natural compounds like carbohydrates, phenols, saponins, terpenoids, alkaloids, flavonoids and other components are also present in methanolic extract. The methanolic extract of the plant is richer than the water extract. The flavoid and phenolic compound with it show the ma maximum concentration as (2.129 milligram, 4.22milligram and lower in the water extract(548 milligram 624 milligram). There is positive correlation between phenol content and the DPPH activity. The root and bark of plant shows good antioxidant activity. The plant extract act as the good antioxidant agent for various supplement.