Medicinal plants contain some organic compounds which provide definite physiological action on the human body. The present study was aimed at physico-chemical and preliminary phytochemical screening of Tamarix ericoides of root extracts. The dried root powder was subjected to successive Soxhlet extraction using Petroleum ether, methanol and water. These solvent extracts were subjected to a preliminary phytochemical screening to detect the different chemical principles present viz., carbohydrates, proteins, amino acids, steroids, glycosides, alkaloids, Flavonoids, tannins and phenolic compounds, the phytochemical evaluation revealed the presence of glycosides, saponins, sterols, phenolic compounds, flavanoids, tannins, carbohydrates. The diversity of phytochemicals found suggests that that aqueous, petroleum ether, acetone and methanolic solvent extracts of these tested plants contain medicinally important bioactive compounds Hence Standardization of crude drug plays a very important role in identifying the purity and quality of crude drugs. The present investigation reveals Standardization which include Total ash, Acid insoluble ash, Water soluble ash, Water soluble Extractive value, Alcohol soluble Extractive value, Phytochemical screening, and further isolation and identification of Phytoconstituents.