Abstract： Objective： To observe the clinical effect of Tongmai Jiejing Decoction combined with rehabilitation training on spasticity of lower limbs after stroke and its effect on spasticity index and motor function. Methods：A total of 76 patients with spasticity of lower limbs after stroke were divided into the control group and the observation group according to the random number table method，with 38 cases in each group. The control group was given routine symptomatic treatment for stroke and rehabilitation training，and the observation group was additionally treated with Tongmai Jiejing Decoction based on the treatment of the control group. The clinical effects and traditional Chinese medicine (TCM) syndrome scores， spasticity index and motor function were compared between the two groups before and after treatment. Results：Before treatment，there was no significant difference being found in the comparison of TCM syndrome scores (P＞0.05)；after treatment，the TCM syndrome scores of hemiplegia，spasm of hands and feet，hemianethesia，stiff tongue and dysphagia，dim complexion and swelling of hands and fest in the two groups were decreased (P＜0.05)，and the above six scores in the observation group were lower than those in the control group (P＜0.05). The total effective rate was 92.11% in the observation group， higher than that of 78.95% in the control group (P＜0.05). Before treatment， there was no significant difference being found in the comparisons of scores of Clinical Spasticity Index (CSI) for muscle tension，tendon reflex and clonicity between the two groups (P＞0.05)；after treatment，the CSI scores for muscle tension， tendon reflex and clonicity in both groups were decreased (P＜0.05)， and the CSI scores for above three indexes in the observation group were lower than those in the control group (P＜ 0.05). Before treatment， there was no significant difference being found in the comparison of scores of Full- Meyer Motor Function Assessment (FMA) between the two groups (P＞0.05)；after treatment，the FMA scores in both groups were increased (P＜0.05)，and the FMA scores in the observation group were higher than those in the control group (P＜0.05). Conclusion： Tongmai Jiejing Decoction combined with rehabilitation training has a significant clinical effect on spasticity of lower limbs after stroke， which can improve the TCM syndromes of patients，mitigate the degree of spasticity of lower limbs and enhance the motor function of lower limbs.