Laparoscopic technique has advantages of local amplification, clear imaging features. Most of the domestic minimally invasive centers are in the rational use of advanced endoscopic equipment and familiar with the anatomic structure, they pay attention to new technology development and team coordination training, all schools of thoughts contend for attention, they learned from each other, and to promote the progress of the endoscopic techniques. In recent years, the long-term curative effect of laparoscopic radical resection of left colon cancer has gradually been recognized, and the CME in the colon is playing an important role. Due to the left half colon cancer radical surgery involves complicated anatomy, the surgical plan has not yet formed a consensus, the difficulty of the laparoscopic surgery, high technical requirements, thus, early operation need to be careful.