Objective: This study aimed to examine the association between the postural balance and clinical status of patients with Knee osteoarthritis (KOA) with and without a history of falls. Method: 74 women with KOA between the age of 50 and 75 years were selected, separated in three groups (KOA subjects with and without history of falls and asymptomatic subjects for KOA), by examining the association between clinical data and postural balance. Results: The results indicated that the subjects with KOA, regardless of history of falls, needed more time to acquire postural stability than the asymptomatic. The balance of these subjects is significantly affected by increased body mass, pain intensity, levels of KOA, and fear of falling and diminished physical activity and functional capacity. Conclusion: In light of these findings, we concluded that the clinical of KOA, rather than the history of falls, is an important predictor of falls risk.