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Purpose：The purpose of this study is to analyze the effect of closed-chain exercise on weight supporting rate change within hemiplegic side and static · dynamic balance ability in stroke patients. Methods：The subjects of the study were 13 hemiplegic patients who carried out closed- kinematic chain exercise program over 6 weeks. The exercises of the program are stand to sit with stall bar, stair-up & down by a hemiplegic leg and bridging exercise crossing the non-hemiplegic leg onto the hemiplegic leg. Each exercise was carried out over 3 sets of 10reps. Results：The results of this study were summarized as follows: 1. After intervention, there was a statistically significant change in the weight supporting rate within hemiplegic and non-hemiplegic side(P<0.05). 2. After intervention, there was a statistically significant change in the static balance (FICSIT-4) ability(P<0.05). 3. After intervention, there was a statistically significant change in the dynamic balance (FSST, TUG, FRT) ability(P<0.05). Conclusion：The results of the study suggests that closed-chain exercise program in stroke patients improves their weight supporting rate and enhance the static · dynamic balance.