Objective To investigate the effect of a health education club for patients with gestational diabetes mellitus (GDM). Methods Totally, 64 women at 24 to 26 weeks singleton pregnancy and diagnosed with GDM were divided into two groups accor-ding to time orders. The control group was given routine health education, while the research group was asked to join a "Sugar Mommy Club".Three months after the intervention, blood glucose control and self-care ability were compared between the two groups.Results The results of fasting plasma glucose, 2-hour postprandial blood glucose, and HbA1c were significantly lower in the research group than those in the control group （P＜0.01 for all）.The self-management efficacy and diet adherence scores of the research group were higher, and exercise barriers scores were lower, than those of the control group （P＜0.05,P＜0.01）.Conclusion The practice of "Sugar Mommy Club" could effectively control blood glucose of GDM patients, and enhance disease self-management levels.