Background: Gestational Diabetes Mellitus (GDM) is one of the most common medical health problems that may occur during pregnancy. Up to 60.8% of women with GDM may have anxiety. Aim of the study: Assess effect of antenatal anxiety on future pregnancy on future plan among gestational diabetic women. Study Subjects and design: A mixed research study design used 151 pregnant women. Setting: The study was conducted at an Obstetrics and Gynecology Clinic at Kafr-Saqr Central Hospital. Tool of data collection: Structured Interview Questionnaire consist of general characteristics, obstetrics history, Pregnancy-Related Anxiety and opinion of pregnant women regarding acceptance to be pregnant in the future. Results: studied gestational diabetic women were fear of giving birth with Mean ±SD (9.93 ±3.47), Worries about bearing a physically or mentally handicapped child with the highest Mean ±SD (15.17 ±4.31) and were concern about own appearance with Mean ±SD (9.05 ±2.34). Also, total Mean ±SD of anxiety level of studied gestational diabetic women were (34.15 ±6.02). (81.5) of studied pregnant women who want to be pregnant again in the future were eating healthy diet, (75.9%) maintain a healthy weight. Conclusion: Total Mean ±SD of anxiety level of studied gestational diabetic women were (34.15 ±6.02) & more than one third of studied gestational diabetic women want to be pregnant in future and majority of studied pregnant women who want to be pregnant again in the future were eating healthy diet. Recommendations: developing simple well designed brochures for women with history of gestational diabetes mellitus about anxiety.