1.6 cm liver cancer is surgically classified as microscopic liver cancer, the smallest category in the classification. According to the size of cancerous nodules, liver cancer is classified as microscopic liver cancer, small liver cancer, large liver cancer and giant liver cancer. Cancer nodule diameter ≤2cm is considered as micro hepatocellular carcinoma; 2cm < cancer nodule diameter ≤5cm is considered as small hepatocellular carcinoma; 5cm< cancer nodule diameter ≤10cm is considered as large hepatocellular carcinoma; cancer nodule diameter >10cm is considered as giant hepatocellular carcinoma. Primary hepatocellular carcinoma has insidious onset and lacks typical clinical symptoms in early stage. Those with obvious clinical symptoms usually enter the middle and late stages of the disease. The earlier it is detected, the earlier it is treated and the better the effect is. Currently, surgical resection is the first choice and the most effective treatment for liver cancer. For 1.6cm micro hepatocellular carcinoma, radical hepatectomy is the most effective method, but surgical treatment needs to meet certain conditions, such as the patient’s general condition is good, the liver function is graded A or B, and there is no extrahepatic metastatic spread. For malignant tumors, the treatment time is very important, it is recommended to seek medical treatment as soon as possible, under the advice and guidance of hepatobiliary surgeon, complete the necessary examinations and take appropriate treatment measures at an early date.