In recent years, surgical techniques have evolved, most notably minimally invasive techniques and transplantation techniques. Minimally invasive techniques, in a broader sense, are those that differ from traditional, highly invasive surgical methods and emphasize minimizing the “side effects” of the surgery itself, i.e., the irreparable trauma to the patient’s body, while obtaining the same or even better surgical results. Laparoscopic surgery is a masterpiece of minimally invasive techniques. The traditional approach to abdominal surgery is to perform the surgery open. The most obvious feature is that there is a long wound in the abdomen and the surgeon’s hand as well as the surgical instruments are in direct contact with the patient’s internal organs. While the disease is relieved, the “side effects” are also more obvious. The main side effects are postoperative pain, infection of the incision, formation of intestinal adhesions, slow recovery of gastrointestinal function, and decreased immune function. In layman’s terms, the “vitality” of the person is greatly affected. Laparoscopic surgery, also known as “keyhole” surgery, uses specially designed surgical instruments to reach into the patient’s body through a wound the size of a keyhole in the abdomen and remove the lesion without hand contact with the organ, thus maximizing the protection of the patient’s “vital energy”. “This has a significant effect on the recovery of the patient after the disease. For colorectal cancer, including colon and rectal cancer, the effect of radical laparoscopic surgery is particularly obvious. It is mainly in the following aspects: 1. It makes the chance of anus preservation significantly increased for low rectal cancer. Since the rectum is located in the narrow pelvis, it is difficult to free the whole rectum in low position by open surgery under direct vision, especially for obese, short and male patients. However, laparoscopic instruments can reach deeper and free the rectum under the magnifying effect of the mirror to remove the lesion to the maximum extent and preserve the anus. 2. It is easier to achieve nerve protection, making the postoperative impact on urination and sexual function limited. Perhaps few people understand that rectal cancer surgery often leads to a major impact on patients’ postoperative urinary function and sexual function. The main problem is damage to the vegetative nerves. Laparoscopy, with its magnification, makes it easier to show the course of the nerves. The ultrasonic knife is less damaging to the surrounding tissues, including the nerves, than the electric knife used in open surgery. Most importantly, the anatomical “gaps” are more clearly visualized under laparoscopy. Inevitably, the chance of nerve damage is reduced. 3, tiny surgical wound, rapid recovery after surgery. In the case of high rectal and colon tumors, the last keyhole has to be slightly enlarged to remove the intestinal tube because it has to be removed from the abdomen at the end. The suture of the remaining wound will not exceed 2 stitches. In the case of rectal cancer that cannot be anally preserved, the keyhole site on the left side can be used exactly to create an artificial anus. Open surgery also has a long wound on the inside of the artificial anus, which is prone to contamination by fecal matter expelled from the artificial anus and has always been a cause for concern. Laparoscopic surgery has no wound around the artificial anus, saving both the surgeon and the patient from this concern. The development of minimally invasive technology has given more human considerations and beauty to the method of relieving diseases. Minimally invasive treatment of colorectal cancer can serve as a good example.