A field experiment was conducted during Zaid 2022 at Crop Research Farm, Department of Agronomy, Sam Higginbottom University of Agriculture, Technology And Sciences, Prayagraj (U.P). To determine the “Influence of sulphur and foliar application of molybdenum on growth and yield of summer cowpea (Vigna unguiculata L.).” The results showed that treatment 9 [Sulphur (30kg/ha) + Molybdenum (15ppm)] recorded significantly higher plant height (59.5 cm), higher number of branches/plant (6.60), higher number of nodules/plant (33.80), higher plant dry weight (16.26 g). Whereas, maximum number of pods/plant (14.87), maximum number of seeds/pod (10.67), higher test weight (133.34 g), higher seed yield (1.03 t/ha), higher haulm yield (1.70 t/ha), was recorded in treatment 9 [sulphur (30kg/ha) + Molybdenum (15ppm)]. Similarly, maximum gross returns (73,697.44 INR/ha), higher netreturns (49,050.92 INR/ha) and highest benefit cost ratio (1.99) was also recorded in treatment 9 [sulphur (30kg/ha) + Molybdenum (15ppm)] as compared to other treatments.