There are many ways of interventional treatment, which need to be individualized according to the patient’s specific condition, as follows: 1) for patients with hepatocellular carcinoma, hepatic artery infusion chemoembolization therapy is feasible; 2) for patients with biliary tract obstruction, if the patient’s general condition is poor and cannot tolerate surgery, percutaneous transhepatic biliary stenting is feasible to relieve the patient’s biliary tract obstruction, improve liver function, and improve the patient’s quality of life The patient’s quality of life can be improved. Take percutaneous transhepatic biliary stenting as an example, the patient lies flat on the operating table, routine disinfection, towel laying, biliary tract puncture under ultrasound positioning, placement of guidewire and catheter, injection of contrast agent, understanding the biliary tract, guidewire through the obstruction site, balloon dilation, then select the appropriate size of biliary stent, re-imaging, and confirm biliary tract patency.