Abstract： Objective： To observe the clinical effect of the combination use of lifestyle intervention and catgut embedment in acupoints and breathing exercises with Pilates method on simple obesity of internal retention of phlegmdamp type. Methods： A total of 99 patients with simple obesity of internal retention of phlegm-damp type treated in Fujian Nanping People's Hospital Affiliated to Fujian University of Traditional Chinese Medicine from July 2023 to December 2024 were selected as the study subjects，and they were divided into three groups by random number table method， with 33 cases in each group. The patients in the three groups were given lifestyle intervention. The control group A was treated with catgut embedment in acupoints， the control group B was treated with Pilates breathing exercises，and the observation group was treated with catgut embedment in acupoints combined with Pilates breathing exercises. Three groups were all treated for 12 weeks. The body mass index，waist circumference and hip circumference of the three groups were measured before and after treatment， and the waist hip ratio was calculated. The traditional Chinese medicine syndrome scores were evaluated and the fasting blood glucose（FBG）was detected. The clinical effects were compared among the three groups. Results：After treatment，the total effective rate in the observation group was higher than that in the control group A and the control group B，differences being significant（P＜0.05）. The body mass index，waist circumference，hip circumference，waist hip ratio and the scores of body obesity，heaviness in the limbs， abdominal distention，fatigue and weakness in the observation group were lower than those in the control group A and the control group B， differences being significant（P＜0.05）. The FBG level in the observation group was lower than that in the control group A and the control group B，differences being significant（P＜0.05）. There were no significant differences being found in the comparisons of observation indexes between the control group A and the control group B （P＞0.05）. Conclusion： The additional combination use of catgut embedment in acupoints and breathing exercises with Pilates method based on lifestyle intervention has a great curative effect on simple obesity of internal retention of phlegm-damp type，which can effectively reduce the body mass，improve the traditional Chinese medicine syndrome of internal retention of phlegm-damp，regulate the glucose metabolism and enhance the clinical effect.