Portal hypertension in our country is mainly intrahepatic portal hypertension caused by posthepatitic cirrhosis, and the clinical manifestations of the patients are closely related to the degree of elevation of portal pressure. The conditions of these patients are complicated and most cases need surgical treatment. The surgical approaches include devascularization, shunting and combined procedures, but many factors should be considered in surgical approach selection. Portal pressure is one of the important indicators that reflect the portal venous hemodynamics, and according to the intraoperative portal pressure, the proper surgical approach can be selected, and this is of great importance for achieving satisfactory results.