The aim of this research was to evaluate the phytochemical (phenols, tannins, terpenoids, alkaloids, glycosides and flavonoids) and proximate (carbohydrate, moisture, protein, lipid, ash and fibre) compositions of Centrosema pubescens leaves. These were done using well known standard methods. The results of proximate and phytochemical constituents respectively revealed the following order of occurrences: carbohydrate > moisture > protein > lipid > ash > fibre; phenols > tannins > terpenoids > alkaloids > glycosides > flavonoids. The presence of these phytochemical and proximate obtained from this study shows that Centrosema pubescens leaves are good source of anti-oxidant phytochemicals and essential proximate and thus, could be used as a nutritional supplement to diet together with management of oxidative stress related disorders.