This study was conducted to examine the effects of low-density exercise on physical and psychological function of the frail elderly. The research design was nonequivalent control group pretest-posttest design. Data were analyzed using descriptive statistics, x2-test, Mann-Whitney U test and Cronbach's ⍺ with SPSS/Win 17.0 program. There was a significant improvement in Lt. Grip strength(U=56.00, p<.000), Rt. Grip strength(U=40.00, p<.000), TUG(U=95.00, p<.022), Depression(U=94.00, p<.011) in the experimental group compared to the control group. The low-density exercise program showed the effects to improve the physical and psychological functions of the frail elderly. In recommendation, this exercise program could be utilized as a health promoting program for the frail elderly.Key Words : Frail elderly, Exercise, Depression, QOL(Quality of life), Human physical conditioning Exercise, Vol 36, No 11, pp. 1985-1996.