The patient was admitted to the hospital in an emergency on March 16, 2013 because of painful swelling in both lower extremities for 14 days, coughing and coughing with chest pain for about one week after 3 days of continuous train ride. The ultrasound of veins of both lower extremities showed that the patient had thrombosis of the common femoral vein, superficial femoral vein, N vein and proximal posterior tibial vein of the right lower extremity. 64-row lung CT showed that the right distal pulmonary artery trunk, right upper pulmonary artery and left lower pulmonary artery were embolized. The patient’s condition was very critical and if not treated in time, the patient’s life would be endangered. After the patient was hospitalized, the patient and his family agreed to choose interventional treatment, and on March 18, Director Yu Lei of the interventional ward personally performed vena cava, right lower limb vein, pulmonary artery angiography + inferior vena cava filter placement + indwelling catheter thrombolysis via right jugular vein puncture under local anesthesia. After 15 days of treatment, the patient’s condition improved significantly, with no cough, sputum and dyspnea, and the swelling of both lower limbs subsided. On April 1, the patient underwent left lower limb venogram + pulmonary arteriogram + inferior vena cava filter removal + indwelling catheter removal under local anesthesia again. During the imaging process, the lumen of the common femoral vein and iliac vein of the right lower limb was enlarged, and the proximal thrombus of the superficial femoral vein, N vein and posterior tibial vein was successfully thrombolized. The filter was successfully retrieved. The patient was discharged from the hospital on April 4 after being discharged and discharged from bed with no discomfort. The patient and his family were very grateful and presented a banner to express their gratitude to Yu Lei, the director of the interventional ward, Qin Hande, the attending physician, Nong Ruilan, the nurse-in-charge and all the doctors and nurses. Pulmonary embolism is a clinical and pathophysiological syndrome in which a thrombus free from the venous system passes through the right heart and enters the pulmonary artery or its branches, blocking the blood flow, increasing the resistance to blood flow in the pulmonary vessels and increasing the load on the right heart, causing impaired perfusion and ventilation in the lungs. It is one of the most common causes of death from thrombosis. The treatment methods include conservative treatment with medical drugs and surgical thrombosis, but surgical thrombosis is not usually performed for deep vein thrombosis in the lower extremities, and surgical thrombosis is usually traumatic and often involves recurrence of thrombosis. The incision of interventional thrombolysis is tiny (about 2mm), which can reduce the pain of patients and local anesthesia, and is simple and safe. The treatment plan, our hospital adopts the placement of filter, placement of tube thrombolysis is the most ideal method for the treatment of deep vein thrombosis in China, which has got the domestic venous disease, therefore, the interventional treatment of venous thrombosis has become an important means in the medical field today.