In recent years, research about sentinel lymph node mapping in endometrial cancer surgery has developed quickly. Several clinical studies indicate that sentinel lymph node mapping in early endometrial cancer can improve detecrate and decrease the false-negative rate. However, the technology is still controversial. Therefore, further study is needed to assess the role of sentinel lymph node mapping in endometrial cancer. This review mainly focused on the current clinical practice of sentinel node mapping technique in endometrial cancer, and the existing problems and controversies.