Primary fallopian tube cancer is the malignant tumor with the lowest incidence in the female reproductive system. The preoperative diagnosis rate is extremely low, because the incidence is rare and easy to be ignored, and the fallopian tubes are not easily accessible in the pelvic cavity, and the specificity of symptoms and signs is not strong, so it is often misdiagnosed and not easily distinguished from ovarian tumors and tubo-ovarian cysts. Preoperatively, the diagnosis of fallopian tube cancer is often not clear, and the reasons for this are as follows Clinically, they are more often manifested as abdominal rise, abdominal pain and pelvic masses, which are more easily misdiagnosed as benign and malignant ovarian tumors or inflammatory masses before surgery. 2. Imaging cannot distinguish well the anatomical structure of the fallopian tubes and surrounding organs, and most patients are misdiagnosed as ovarian tumors. 3. The incidence rate is extremely low and clinicians lack vigilance in diagnosing fallopian tube cancer. Vaginal cytology, segmental curettage, laparoscopy and gastroscopy to exclude gastrointestinal tumor metastasis may help the preoperative diagnosis of fallopian tube cancer. If tubal cancer cannot be ruled out, it is advisable to confirm the diagnosis as early as possible by caesarean section. The treatment is mainly based on tumor cytoreductive surgery, supplemented by chemotherapy and radiotherapy after surgery. This disease is easily missed and misdiagnosed in the early stage, which delays the time of treatment, and it is highly malignant with poor prognosis, clinical stage is the main prognostic factor.