After being informed the study and potential risk，all patients giving written informed consent will be undergo a 1-week screening period determine eligibility for study entry. At week 0, patients who meet the eligibility will be randomized in a 1:1 ratio to vaginal brachytherapy or pelvic external beam radiotherapy. After treatment, patients were followed up regularly.
To compare the effect of vaginal brachytherapy as adjuvant treatment after operation when compared to pelvic external beam radiotherapy in patients with early endometrial cancer based on moderate risk molecules classification.