As many people know, liver cancer mainly occurs in hepatitis B population, then surveillance of hepatitis B population can significantly improve the early diagnosis rate of liver cancer. Alpha-fetoprotein (AFP) is the most well-known tumor indicator, and the current advanced imaging equipment such as 64-row spiral CT and high field strength MRI can detect liver cancer less than 1 cm, thus nip the disease in the bud. In recent years, the number of patients with small liver cancer detected from routine examination in Bayi Hospital is increasing year by year, and timely early treatment is especially important to improve the cure rate of liver cancer. Improving the surgical resection rate of liver cancer In clinical practice, surgical resection is the first choice for the treatment of liver cancer. In the past, the factors that restricted the surgical resection of liver cancer were mainly that patients had different degrees of cirrhosis, which made surgery impossible to perform extensive liver resection. Another is that liver cancers with tumor diameter greater than 5 centimeters are often closely related to the surrounding vascular structures, which seriously affects resectability. The principle of performing surgery is to preserve sufficient volume of the remnant liver, as well as the functional integrity of the contained ductal structures, and to be able to compensate for the proper function of the liver. Therefore, at this stage, preoperative diagnostic evaluation is the most important task in hepatocellular carcinoma resection. The Department of Surgical Oncology of the hospital currently accomplishes preoperative preparation through methods such as liver function reserve test (ICG test) and computerized 3D reconstruction technology of intrahepatic ducts, thus ensuring the safety of surgical resection and also improving the resection rate of liver surgery. In the past, patients’ liver function was simply evaluated through biochemical tests such as liver function, and some liver cancers with close relationship between tumors and blood vessels were abandoned for safety reasons. Nowadays, surgery has entered the stage of precision surgery. With the help of intraoperative ultrasound exploration, the vascular structure in the liver can be visualized; with the help of precise liver dissection instruments such as super suction knife, each hair-thin tube can be revealed on the liver surface; with the help of selective blood flow blocking technology, bloodless liver dissection can be achieved. With the above advanced instruments and technologies, most of the hepatectomies can be completed without blood transfusion, which not only facilitates the patient’s postoperative recovery, but also avoids the significant decline of the patient’s immune function after surgery, and even reduces and delays the recurrence and metastasis of liver cancer after surgery. Minimally invasive can also completely eliminate liver cancer lesions For some small liver cancers, surgical resection is not the only option for surgical treatment. It has always been the goal of surgeons to achieve the cure of the disease with the least possible trauma. For some patients with suitable conditions, minimally invasive surgical methods can be adopted; for patients with severe cirrhosis and deep tumors, puncture radiofrequency ablation can be used to eliminate the lesions; for patients with peripheral marginal lesions, laparoscopic resection or radiofrequency ablation can be adopted. All these minimally invasive surgical methods can achieve the purpose of complete elimination of lesions, and also can significantly reduce the pain of patients after surgery and make them recover faster.