To observe the curative effect of acupuncture in the treatment of patients with simple obesity.Methods: One hundred and two cases of simple obesity were randomly divided into control group (n=51) and treatment group (n=51). Patients in the control group were given ear acupuncture treatment, and the treatment group also applied acupuncture treatment. The area of adipose were measured and compared after 2 courses of treatment. Results: The curative rate of treatment group was 35.29%, and the total effective rate was 82.35%, both were better than those of the control group (11.77% and 62.75%) with statistically significant difference (P<0.05). After treatment, hip circumference, body weight of visceral adipose area (VA), abdominal subcutaneous adipose area (SA) of patients in the control group were decreased compared with those before treatment, but there was no statistical significant difference (P>0.05). The body mass index (BMI), waist circumference of patients in the control group decreased obviously compared with what they were before the treatment, and the difference was statistically significant (P<0.05). As for patients in the treatment group, their body weight, BMI, waist circumference, hip circumference, VA, SA after treatment were decreased compared with the conditions before the treatment, and the differences were statistically significant (P<0.05). The indexes of patients in treatment group decreased more significantly compared with the control group, and the differences were statistically significant (P<0.05). Conclusion: Acupuncture treating simple obesity can help the weight loss and reduce abdominal VA, SA, reduce the risk of complications with excellent effect. Abdominal MRI observation of VA, SA can be considered as a more definite quantitative standard to valuate therapeutic effect.