This study was carried out to determine the essential oil composition, antioxidant capacity and totalphenolic substance of Helichrysum stoechas which was gathered from Hatay region. H. stoechas had a moisturecontent of 13.55 weight%, while the essential oil content of 0.3 wt% and ten volatile compounds were determinedand identified by GC. Predominantly volatile components are rosifoliol 4.89%, 3-methoxy-γ-asarone 34.69%,elemicin 3.24%, myristicin 23.35%, apiol 27.38%. Methanol soluble fraction was found to be 15.3%. Total phenolconcentration was found 256.55 ± 3.7 mg gallic acid equivalent/g of extract powder. DPPH free radical-scavengingactivity IC50 was found as 2.76 ± 44x10-2 mg mL-1. The inhibition value of methanolic extract was compared withBHA and BHT. The volatile oil is rich in hallucinogenic elemicin and myristicin. Obtained results showed that themethanolic extract was rich in phenolic content and has a close antioxidant activity to the synthetic antioxidantsBHT and BHA.