Endoscopic submucosal dissection（ESD）is the first choice for the treatment of early gastrointestinal tumors，but it is technically difficult and may cause serious complications. The key to perform successful ESD operation is to maintain a good field of vision. Therefore，the appropriate application of assisted traction technology can reduce the difficulty of surgery and ensure the safety of surgery. This article reviewed the commonly used auxiliary traction techniques in recent years for clinical reference.