Colorectal cancer is the third most common malignancy in China.About 20% patients have distant metastasis at the time of diagnosis.The lung is one of the most frequently involved organs.Massive documents indicate that for patients with limited lung metastasis, 5 year survival following surgical resection would be 21%-64%, simultaneous resectable other metastatic lesion should not be the contra-indication for surgery.Patients with good tolerance of surgery would still benefit from resection of the recurrent tumor after initial resection of lung metastatic tumor.Wedge resection with resection margin of 0.5cm~1.0cm is the standard of care for peripheral metastatic tumors.There is much controversy on the dissection of the chest lymph nodes.Multiple lung metastatic tumor, elevated CEA level, lymph node metastasis in the chest, and the short tumor free interval are factors indicating poor prognosis.For patients with lung metastasis of colorectal cancer, individualized therapy on the basis of precision medicine is the key point to increase the survival rate in the future.