Although modern technology is advanced, due to the hidden nature of colorectal cancer, the symptoms of early-stage cancer patients are extremely inconspicuous. It is clinically found that most of the colorectal cancer patients with obvious symptoms have already reached the middle or late stage. So, is traditional Chinese medicine better than chemotherapy in the treatment of colorectal cancer? Chemotherapy is sometimes necessary for the treatment of colorectal cancer, and Chinese medicine can alleviate the side effects of chemotherapy. In terms of clinical experience, Chinese medicine is a better drug with chemotherapy for colorectal cancer, which has the dual effects of immune regulation and anti-tumor, and can play the role of increasing efficiency and reducing toxicity with chemotherapy for colorectal cancer. Preoperative chemotherapy Preoperative chemotherapy is a new development of colorectal cancer. Clinically, there are very few people who use preoperative systemic intravenous chemotherapy alone, mainly through regional arterial perfusion chemotherapy and then with preoperative radiotherapy is to reduce the size of the mass, reduce the adhesion of the surrounding tissues, and improve the success rate of anus-preserving surgery for middle and lower rectal cancer. Intraoperative chemotherapy Intraoperative chemotherapy aims at applying anticancer drugs to kill the tiny lesions or shedding cancer cells, so as to prevent or reduce the occurrence of liver metastasis, abdominal implantation and anastomotic recurrence after operation. Intraoperative chemotherapy mainly includes enteral cavity chemotherapy, abdominal cavity chemotherapy, systemic intravenous chemotherapy and portal vein infusion chemotherapy. Postoperative chemotherapy Postoperative adjuvant chemotherapy for colorectal cancer is aimed at eliminating subclinical microscopic metastases or delaying their appearance in order to prolong survival.