Medicinal active herbal plants and their phyto-constituents have proven for their chief role in promoting health care system. India has awide diversity of medicinal plants, local population as well as traditional healers used them in the treatment of many diseases. In recent time’s plants or their originated products used as raw food as well as medicine. Gas chromatography and Mass spectroscopy (GC-MS) method used for analysis of Pterocarpus santalinus L. f leaves hydroalcoholic extract can be interesting tool for testing the presence of some active phytoconstituents present in it. In this research paper our aim mainly concerned with identification of some bioactive compounds from the Pterocarpus santalinus L. f. leaves hydro-alcoholic extract by GC-MS. GC-MS analysis revealed the presence of various compounds like.