Abstract : Objective Improve the accuracy of ultrasonic diagnosis of traumatic splenic rupture by analyzing the reasons of ultrasonic misdiagnosis of traumatic splenic rupture. Methods Review and retrospectively analyze of the sonographic characteristics of the recent 31 cases of ultrasonic misdiagnosed traumatic splenic rupture, and make comparison with CT results and postoperative pathologic. Results In this analysis, 25 cases of traumatic splenic rupture were misdiagnosed as normal spleen, including 23 patients with superficial spleen laceration and 2 patients with complete splenic rupture; The rest 6 cases were misdiagnosed as traumatic splenic rupture, including 2 patients with left liver hypertrophy covering above the spleen, 1patient with spleen deformity, 1 patient with splenic infarction, 1 patient with splenic hemangioma, and 1 patient with splenic cysts. Conclusions While making ultrasonic examination in patients with suspected traumatic splenic rupture, we should apply multi-probe combination, multi-slice scanning carefully, and combine with dynamic observation of clinical history, so that we can improve the accuracy of the ultrasonic diagnosis of traumatic splenic rupture. Key words: Splenic rupture Ultrasonic Diagnosis Misdiagnosis