A method of displaying stereoscopic information related to an ultrasound sectional plane of a target object includes setting a line of interest on the ultrasound sectional plane of the target object based on a received input obtaining an ultrasound signal of the ultrasound sectional plane of the target object along the set line of interest converting the obtained ultrasound signal to represent the stereoscopic information in a three-dimensional manner and displaying the stereoscopic information related to the ultrasound sectional plane of the target object.
