Jasminum mesyni Hance belonging to family Oleaceae is an important traditional medicinal plant found in china and grown in Indian gardens. Various active constituents are β - sitosterol, α-amyrin, β- glucoside and flavonoids. Other species of Jasminum like Jasminum rigidum are used as antidiabetic. However, detailed scientific information is not available to identify the plant material, in order to ascertain its quality and purity. In this paper, we report the pharmacognostic, macroscopy, microscopy, physicochemical parameters such as moisture content, ash values, extractive values, and preliminary phytochemical analysis of the leaf were investigated. Each extract was subjected to qualitative tests for identification of various constituents like alkaloids, carbohydrates, glycosides, anthraquinone glycosides, steroids, saponins, flavonoids, tannins and phenolic compounds and proteins. The present study will be useful for its identification prior to carrying out further research work. The findings of this study will facilitate pharmacognostic standardization of the plant material and aid in the preparation of a herbal monograph for the species.