Abstract Background: Non-specific low back pain (NSLBP) has be-come a major public health problem worldwide. Mulligan has a great role in the treatment of NSLBP. Aim of Study: The study was conducted to compare be-tween immediate effect of SNAG and mulligan lion position in range of motion (ROM), pain, functional ability and kinesio-phobia on patients with nonspecific low back pain. Subjects, Material and Methods: Thirty-four patients with NSLBP participated in the study. Their ages ranged from 20 to 40 years old. They were randomized into two groups. Group A received mulligan SNAG from sitting position and McGill stabilization exercises. Group B received mulligan modified lumbar SNAG lion position and the same McGill stabilization exercises as in group A. Results: The findings of the study showed that: There was improvement inlumbar flexion, extension ROM and pain in group B regarding o group A. There was no significant differ-ence between group Aand B in Oswestery Disability Index and Kinesiophobia. Conclusion: In the present study, it could be seen that im-mediate effect of Modified lumbar SNAGs (lion position) in addition to McGill stabilization exercises was more effective than mulligan SNAGs from sitting addition to McGill stabiliza-tion exerciseson flexion and extension lumbar range of motion, &pain but not in function and kinesiophobia. So, using mulli-gan lion position combined with McGill stabilization exercises may be a major strategy in dealing with NSLBP patients.