ABSTRACT Background:  Dynamic stabilization exercise (Vojta) is a neurophysiological method used to obtain reflex responses in muscles following stimulation of particular activation zones. Objectives: To determine the effect of dynamic stabilization exercise  onelectromyographic activity of multifidus in chronic low back pain patients. Methods: thirty- five patients with chronic low back pain included in the study from MTI university outpatient clinic. Their mean ±   SD age, weight, height, and BMI were 27.25 ± 6.62 years, 80.42 ± 9.78 kg, 174.25± 3.86 cm, 26.45 ± 2.86 (kg/m²). Results:  there was a significant decrease in the EMG amplitude of multifidus in Vojta method compared with that of the maximum voluntary contraction. Conclusion: Vojta method increased the activity of multifidus muscle, but lower than the maximum voluntary contraction of multifidus