Objective:To investigate  the effect of ultrasound-guided percutaneous drainage（UGPD）for patients with traumatic pseudocyst of pancreas (TPP).
Methods:Retrospective analysis of the clinic feature, treatments and the effect of 45 cases of TPP treated in our hospital in recent six years were made.
Results:Of the 45 cases,40 cases were caused by abdominal trauma,5 cases were caused by injury in the operation of splenectomy for patients with portal hypertension. The TPPs were found from 6 days to 60 days (average: 31days) after the injury of pancreas. The diameters of TPP were from 5 to 13 cm with average of (9.2±2.3)cm. All the 45 patients underwent UGPH. The drainage time was 7 to 86 days with average time of 37 days. The drainage fluids were 20 to 500 ml every day. Forty-one (91.1%) patients were cured by UGPH; and four (8.9%) patients were changed to perform operation because of ERCP showing breaking of the pancreatic duct after two weeks drainage. All patients were recovered with no complication and no recurrence for 3 months to one year follow-up.
Conclusions:UGPD was effective method for patients with TPP, and most of the patients can get a good prognosis.