Gestational trophoblastic disease（GTD）is a group of heterogeneous diseases characterized by abnormal proliferation of trophoblastic tissue，which is a rare disease，including both benign and malignant forms，and the latter are collectively referred to as gestational trophoblastic tumors（gestational trophoblastic neoplasia，GTN）. Imaging examinations are essential in the early diagnosis of GTD，especially in the identification of benign or malignant GTD，tumor staging and risk assessment，which play a crucial role in the localization and estimation of lesions in GTD patients，as well as in the choice of treatment.  It provides an evidence for judging prognosis，and can dynamically observe the effect of chemotherapy and recurrence，which has high clinical application value for the diagnosis of trophoblastic diseases.Transabdominal and transvaginal ultrasonography with duplex Doppler assessment are often appropriate adjuncts in any of these settings and in post-treatment monitoring. The use of broader imaging techniques depends on the diagnosis of GTN and other factors.