Abstract： With the increasing maturity of laparoscopic surgery,laparoscopic radical resec-tion of colorectal cancer has been widely used in colorectal surgery.Accurate localization of colorectal tumors and surgical margins in the absence of tactile sensation during surgery,ensuring sufficient blood flow perfusion at the anastomotic site and effectively reducing the incidence of anastomotic leakage have become barriers to the development of laparoscopic radical resection of colorectal cancer.The application of indocyanine green fluorescence imaging(ICG-FI)technology is expected to provide feasible solutions to the above-mentioned problems.Through this technology,accurate localization of colorectal tumors,evaluation of blood supply to the anastomotic site,lymphatic system imaging,detection of colorectal liver metastases,and protection of pelvic autonomous nerves and ureters can be achieved during laparoscopic surgery,thereby further improving the surgical quality of laparoscopic radical resection of colorectal cancer.However,the clinical application of ICG-FI technology in colorectal surgery is relatively short,which is still in the stage of exploration and experience accumulation,and there are few guideline or consensus available for reference.Therefore,the authors aim to provide a reference for the clinical application of this technology by reviewing and summarizing relevant literature based on different application types of ICG in colo-rectal cancer surgery.