Medicinal plants have bioactive compounds are phytochemicals which are used for therapeutic of a variety of human disease. Phytochemicals have two categories which are major and minor constituents. Major constituents have chlorophyll, proteins, sugar and amino acids And Minor constituents contain terpenoids and alkaloids .Medicinal plants have antifungal, antibacterial and anti-inflammatory activities. The leaves of the selected medicinal plants which are as Aloe Vera, Ocimum Sanctum and Sesbania Grandiflora were washed, air dried and then powdered. The prepare aqueous extract ,ethanol extract and choloroform extract of leaf samples were used for the phytochemical analysis to find out the phytochemical constituents in the plants.