With aging, the elderly decreased ability to control postural balance will be accompanied by increased risk of falling (Berg et al, 1992;. Tinetti et al, 1988). According to previous studies, it showed that the elderly over 65 years fall each year probability was 30 %, and it increased with age (Skelton, & Todd, 2004). In view of this, age-related posture control has become important issues of modern preventive medicine and family care.