To explore the value of two dimensional ultrasonography used in gunshot wound, features of gunshot wound in pig thigh were studied by high frequency ultrasound and compared with pathologic examination. The primary wound tract showed remarkable features in ultrasonography with a cured anomalous pipelike image, which changed with time. Tissues around the wound tract also revealed some sonographic characteristics. The results indicate that two dimensional ultrasound can clearly manifest not only the shape and distribution of the wound tract, but also the relation between the tract and its adjacent tissues. Therefore, the method is of important value in treatment of gunshot wound.