This article is based on the results of ethnobotanical investigations conducted in Margalla hills national park. The market survey was aimed to know the market value of medicinal species, rate of consumption, availability and vulnerability to harvesting. Questionnaires were adopted for interviews of local inhabitants, herbalists, pansaries, park authorities and societies on random bases. Only 26 species have been found as marketable medicinal plants collected by the inhabitants, drug dealers and herbalists for their socioeconomic value. Among the species sold in the local market, 3 species i.e., Asparagus adscendens Roxb., Berberis lyceum Royle. and Viola canescens Wall, ex Roxb. found vulnerable to harvesting.