Non–specific low back pain is known specific pathology. Stability of spine involves both active and passive structural stiffness. Exercises on unstable surfaces provide stability to the spine due to the co–activation of global and local muscles. As per inclusion and exclusion criteria patients were included in this study and randomly divided in to Group–A and B. Group–A patients received Traditional exercise and Group–B received Swiss ball exercise for two weeks. Prior to starting & at the end of two weeks of intervention Core endurance was measured using “core stabiliser” and Visual analogue Scale was taken. Within the group analysis Core endurance and Vas shows significant improvement (P–value 0.002). Between the group analysis, VAS (P–value 1.00) and Core Endurance (P–value 0.0072) which indicates. both exercises were equally effective in improving pain and core endurance in subjects with non–specific low back pain.