Capparis sepiaria Linn. (Family: Capparidaceae) is a rare indigenous in South India but has widespread distribution in many tropical and sub-tropical coun-tries. The present study intended with various phytochemical screening and toxicity studies were carried out on the leaves of the Capparis sepiaria. Preliminary phyto-chemical evaluation of the ethanolic extract of revealed that the presence of reducing sugar, flavonoids, steroids, tannins, glycosides, alkaloids, gums, resins, amino acids, proteins and anthraquinones. The toxicity studies were performed as acute, sub-acute and chronic toxicity determined the LD50 value of 300-5000 mg/kg body weight 4-6 weeks. The results of the various phytochemical tests indicated that the plant to be rich in various biologically active compounds which could serve as potential source of the crude drugs and in addition the plant is not toxic to the experimental model.