Surgery is the most optimal and curative intent strategy for liver recurrence from colorectal cancer. There are scoring systems and grade classification for liver resection. If we carry out preoperative imaging of liver metastases strictly following to liver resection, we can expect to get a cure state satisfactory. Early detection and repeated liver resection improve the outcome of residual liver recurrence after liver resection. The maximum number of liver metastases for cure intent liver resection is unclear. Further examination is necessary.