Parkinson's disease is one of the most common diseases of the central nervous system, occurring mainly in the elderly age group. It affects the balance of these patients and increases the risk of falls and eventually dangerous hip fractures. Therefore, it seems necessary to find a way to improve the balance in these patients. The aim of the current study was to investigate the effect of twelve weeks of dynamic neuromuscular stability exercises on the static and dynamic balance of people with Parkinson's disease. In this semi-experimental study, 30 men and women with Parkinson's disease were selected according to the Hun and Yar scale. Then, the participants were randomly paired into two groups including experimental groups of 15 subjects and control. First, both groups were subjected to a pretest. Then the experimental group performed the DNS exercises in for 12 weeks, 3 sessions per week and each session lasted 45 minutes. The control group also led a normal life, and a posttest was performed on both groups at the end of 12 weeks. The foot scan was used to measure static balance and time to get up and go (TUG) test was used to measure dynamic balance. The repeated measures ANOVA was used to analyze the data. The results of the analysis showed that DNS can improve the static and dynamic balance of elderly people with PD. According to the findings, it can be implied that these exercises can make improvements in the rehabilitation programs for people with Parkinson's disease.