Objective To observe the clinical efficacy of long-snake moxibustion in treating asthma due to deficiency of lung and spleen. Method Seventy patients were randomized into a treatment group and a control group. The treatment group was intervened by using long-snake moxibustion, while the control group was by regular acupuncture treatment. The therapeutic efficacy was evaluated after 1-month treatment. Result In the treatment group, 22 subjects showed marked efficacy, 27 showed effective, 6 failed, and the total effective rate was 89.1%; in the control group, 18 subjects showed marked efficacy, 25 showed effective, 12 failed, and the total effective rate was 78.2%. The therapeutic efficacy of the treatment group was significantly higher than that of the acupuncture group(P＜0.05). Conclusion Long-snake moxibustion can produce a higher therapeutic efficacy than regular acupuncture in treating asthma due to deficiency of lung and spleen.