Objective To analyze the influence of combination of lower limb rehabilitation robot and stretching rehabilitation training on motor function, walking ability and balance ability in patients with hemiplegia after cerebral hemorrhage. Methods Totally 106 patients with hemiplegia after cerebral hemorrhage in the hospital from June 2023 to June 2024 were divided into control group (n=53, stretching rehabilitation training) and combined group (n=53, lower limb rehabilitation robot combined with stretching rehabilitation training) by means of simple randomization method. The motor function, walking function, muscle tension, balance ability and daily living ability were evaluated in the two groups before and after treatment.Results At 3 months after treatment, the lower limb motor function score in the combined group was higher than that in the control group (P<0.05). The walking ability and muscle tension in the combined group at 3 months after treatment were significantly better than those in the control group (P<0.05). The Berg balance scale (BBS) score and modified Barthel index (MBI) score were higher in the combined group compared with those in the control group at 3 months after treatment (P<0.05). Conclusion The application of lower limb rehabilitation robot combined with stretching rehabilitation training has an obvious effect on patients with hemiplegia after cerebral hemorrhage, and it can effectively improve the motor function, walking ability, muscle tension and balance ability, and enhance the daily living ability