With the trend of younger incidence of gynecologic malignancies, preservation of reproductive function has become an important topic. Meanwhile, due to the continuous improvement of diagnostic technology and treatment, the early diagnosis rate of tumors and long-term survival rate of patients have been significantly improved, which provides the possibility for some young gynecologic malignant tumor patients to preserve their fertility function. Then, which patients with endometrial cancer are suitable for treatment with preservation of reproductive function? It is generally believed that patients with endometrial cancer with preserved reproductive function should meet the following conditions: 1. age ≤ 40 years old, have not given birth or have a strong desire to have children. 2.Pathological diagnosis of endometrioid adenocarcinoma or glandular spine carcinoma. 3.No evidence of myometrial infiltration or cervical involvement on MRI and no extra-uterine lesions. 4.Highly differentiated. 5, Positive progesterone receptor. 6.Serum CA-125 is normal. 7, normal liver and kidney function, no contraindication to drug therapy. 8, conditions for close follow-up and good compliance. Some scholars suggested that it should also be consistent with laparoscopic pelvic lymph node dissection without evidence of lymph node metastasis. In order to ensure the success of patient treatment, the following tasks should also be done: 1. pre-treatment disease assessment and informed choice. 2.Mastering the correct treatment and assessment strategy. 3.Choose the appropriate assisted reproduction strategy. 4. Pay attention to the management of post-fertility and recurrent cases.