Transumbilical laparoendoscopic single-site surgery (TU-LESS) is currently the most cutting-edge minimally invasive gynecological technology in the world. During the operation, surgical instruments and equipment enter the abdominal cavity through umbilical hole, and the umbilical skinfold is used to block the surgical incision. This operation method poses new challenges to the experience and skills of the operator. To solve problems caused by concentration of instrument placement, mutual collision, and loss of " operating triangle" in TU-LESS, TU-LESS dedicated instruments, such as extended pre-bending, variable visual angle laparoscopic lens and so on have been successively developed. Although these solve the operation problems, its higher price and for one-time use limit the extensive development of TU-LESS in gynecological clinic of primary hospitals. So the use of conventional laparoscopic instruments to develop gynecological TU-LESS arises at the historic moment. The use of conventional multiple-port laparoscopic surgical instruments has the advantages of low price and relatively easy operation, and is suitable for popularization in primary hospitals. Using conventional laparoscopic instruments for gynecological TU-LESS can not only save costs, but also achieve the aesthetic purpose of surgical incisions brought by TU-LESS. The author intends to elaborate on the advantages and disadvantages of TU-LESS using conventional laparoscopic instruments for and its application in gynecologic surgery.