ObjectiveTo investigate the research progress of assisted techniques for lymph node dissection in gastric cancer. Method The literatures on the applications of assisted techniques of lymph node dissection in the gastric cancer radical gastrectomy in recent years were reviewed. ResultsAt present, the assisted techniques used for lymph node dissection in the radical gastrectomy mainly included the lymphatic tracing technology and laparoscopic and robotic surgeries. The lymphatic tracing technology mainly included the use of dye tracers, indocyanine green, gamma probe, intraoperative radiation technology, etc. Among which gamma probe and intraoperative radiation technology were expensive and not suitable for clinical application, and intraoperative radiation technology had a radiation risk, so it was rarely used currently. At present, the dye tracers and indocyanine green were mainly used in the clinical lymph node tracing, both of which could improve the detection rate and increase the number of lymph node dissection, and improve the prognosis of patients. The laparoscopic radical gastrectomy was not inferior to traditional radical gastrectomy in terms of lymph node dissection, and had been more widely used in the clinical practice due to its advantages of visualization, minimally invasive, quickly postoperative recovery, and good short-term efficacy. Compared with the conventional laparoscopic system, the robotic surgical system was more precise, dexterous, stable, and had a better feedback feeling, which was more conducive to the lymph node dissection of special location. ConclusionUse of lymphatic tracers, laparoscopy and robotics could increase lymph node detection rate and improve prognosis of patients.