Abstract: Colorectal cancer is easily metastasized to the liver. Surgical treatment is the best choice for the treatment of colorectal cancer, while the treatment strategy should be selected according to different stages of colorectal liver metastases. Liver metastases occurred at the definite diagnosis of colorectal cancer or within 6 months after radical resection of colorectal cancer are synchronous liver metastases, the timing of synchronous liver metastases resection is still under controversy. Liver metastases occurred at 6 months after radical resection are metachronous liver metastases, and for patients with metachronous liver metastases, reoperation should be applied if the indications are clear. Chemotherapy, radiofrequency ablation and interventional therapy provide chances of reoperation for patients who originally cannot received surgical treatment, while confusion exists in their clinical application. Therefore, multi disciplinary treatment based on individualized condition evaluation is the key point in improving the prognosis of patients with colorectal liver metastases in different stages.