Abstract： Objective： To observe the clinical effect of ultrasound introduction of Buyang Huanwu Decoction on upper limb motor dysfunction after ischemic stroke with qi deficiency and blood stasis syndrome. Methods：A total of 60 cases of patients with upper limb motor dysfunction after ischemic stroke with qi deficiency and blood stasis syndrome were selected and divided into the control group and the treatment group according to the random number table method，with 30 cases in each group. The control group was given medical therapy and routine rehabilitation treatment， and the treatment group was additionally treated with ultrasound introduction of Buyang Huanwu Decoction based on the treatment of the control group. Both groups were treated for eight weeks. The levels of spasm，upper limb motor function， quality of life and surface electromyography signal indexes were compared between the two groups. Results： After four and eight weeks of treatment， the grading in Modified Ashworth Scale in the two groups were improved when compared with those before treatment， differences being significant (P＜ 0.05). The improvement of Modified Ashworth Scale in the treatment group was better than that in the control group at the same period，difference being significant (P＜0.05). The interaction of group and time had statistically significant effects on the scores of Fugl-Meyer Assessment (FMA) and Modified Barthel Index (MBI) (P＜0.05). The single effects of group factors on the scores of FMA and MBI were statistically significant (P＜0.05). The time factors had statistical significance on the scores of FMA and MBI in the two groups (P＜0.05). After four weeks of treatment， the scores of FMA and MBI in the two groups were increased when compared with those before treatment，differences being significant (P＜0.05). After eight weeks of treatment，the scores of FMA and MBI in the two groups were increased when compared with those after four weeks of treatment，differences being significant (P＜0.05). After four and eight weeks of treatment，the scores of FMA and MBI in the treatment group were higher than those in the control group at the same time period，differences being significant (P＜0.05). After eight weeks of treatment，the Root Mean Square (RMS) and integrated Electrpmyogran (iEMG) of biceps and triceps in the two groups were decreased when compared with those before treatment， and the above four surface electromyography signal indexes of upper limbs in the treatment group were lower than those in the control group， differences being significant (P＜0.05). Conclusion： Ultrasound introduction of Buyang Huanwu Decoction has a satisfactory curative effect on upper limb motor dysfunction after ischemic stroke with qi deficiency and blood stasis syndrome， which can effectively reduce upper limb muscle tension， relieve muscle spasm symptoms，and improve activities of daily living and motor function of patients.