Abstract: Objective Weight management is an essential part of health management. There are many ways in weight management such as diet management or exercise management. In order to better carry out the aerospace workers' weight management, health center adopts the way that is the combination of diet and exercise in weight management, and uses the group management to sum up experience. We can develop system of weight management deeply in order to form the standard process. Methods A weight management team consists of a health manager, a food manager, a sports manager, a doctor and a nurse. A combination of diet and exercise for 86 volunteers, who were overweight or obese, has been done in the form of three months' group management. The group of diet management is divided into three groups, namely, Mediterranean diet group, "5+2" light diet group and restricted energy (low GL) group. Exercise management consists of strength training and aerobic exercise. There are many ways in the group management such as WeChat, one-to-one instruction, video teaching, group class, and members' communication. Three months later, relevant data, body composition and body fitness were measured. Results According to the results of three months' weight management, the weight, fat content, muscle content, body fat ratio and waist-to-hip ratio of each group decreased significantly. The higher present rate in dietary intervention and exercise intervention, the greater the change in the index of various body components, and the better the weight loss effect. The communication between the team and volunteers can do good to participate actively in weight management. Conclusion Using group management and different diets is feasible in weight management. The main factors that affect weight management are the participants' initiative and participation. The higher the participation level, the better the reduction effect.