Care for internal jugular vein placement is divided into pre-tubing, intubation and post-tubing. Before placement, it is important to assist the surgeon and fully explain the need and risks of placement to the patient. During the cannulation procedure, it is important to assist the surgeon with the appropriate sterilization and anesthesia, including the final steps of needle fixation and sterile dressing application. The most important care after placement is to observe the local needle eye daily for swelling or subcutaneous redness after placement, and to perform daily antiseptic changes. After each infusion using the placed vein, the tube should be sealed with heparin saline. After placement, the sterile dressing should be changed twice a week and the heparin cap should be replaced again. If a catheter is found to be incompetent or leaking during an infusion, assist the physician in removing the tube in a timely manner. If a thrombus is found at the site of the placement, help the doctor flush the catheter or remove the placement in a timely manner to avoid aggravation of the thrombus and cause thromboembolic disease. If the patient has high fever, chills, redness, swelling and pain at the puncture site, the catheter’s blood culture and peripheral blood culture should be done promptly and the catheter should be removed.