Objective To explore the effect of balance training on sitting balance ability of patients with lower limb joint contracture. Methods Eighty patients with lower limb joint contracture and various degrees of sitting imbalance were selected and divided into two groups according to the odd or even numbers of admission sequence, and arranged in different wards. The control group was given routine rehabilitation training （i.e. normal limb position, massage, active and passive exercise training etc.）, while the in-tervention group was given balance training （relaxation training, micro-vibration therapy, Balloon balance training） on the basis of the control group. After 8 weeks of intervention, the balance ability of patients in static open eyes and sitting position was exa-mined by balance instrument. Results After 8 weeks of intervention, the left and right swing index and the front and back swing index of the two groups were significantly lower than those before intervention （P＜0.05 for all）, and the post-intervention measurements of the intervention group were significantly lower than those of the control group （P＜0.01 for all）. Conclusion Implementing balance training for patients with sitting imbalance caused by contracture of unilateral hip and knee joint can effectively improve the sitting balance ability of patients.