Purpose: The purpose of this study was to evaluate the effects of BeHaS exercise program on pain, balance, and falling efficacy in elderly with osteoarthritis. Method: A convenience sample of 52 elderly people with osteoarthritis who lived in C city were recruited through the public health center. For this quasi-experimental study design, 31 of the elders were assigned to the experimental group which received the BeHaS exercise program twice week for eight weeks, and 24 were assigned for the control group (no intervention). Outcome measures were numeric pain scale, standing on one leg for balance, fall efficacy scale. Analysis was performed with SPSS version 12.0 program. Results: Pain was decreased significantly in the experimental group as compared to the control group, Balance and fall efficacy were improved significantly in the experimental group as compared to the control group. Conclusion: The BeHaS exercise program can be effective in improving pain, balance, and fall efficacy in elders with osteoarthritis.