According to one embodiment of the present invention, disclosed is a method for tridimensionally displaying information on a cross section of a target object, which comprises the steps of: setting an interest line on a target object; obtaining brightness information on the cross section of the target object along the set interest line; converting the obtained brightness information into height information; and tridimensionally displaying information on the cross section of the target object based on the height information. [Reference numerals] (AA) Start; (BB) End; (S100) Setting an interest line on a target object; (S200) Obtaining brightness information on the cross section of the target object along the set interest line; (S300) Converting the obtained brightness information into height information; (S400) Displaying information on the cross section including depth information, time information, and brightness information of the cross section of the object using the obtained brightness information as a height axis본 발명의 일 실시예에 따라, 대상체에 대한 관심 라인을 설정하고, 설정된 관심 라인을 따라 대상체의 단면의 밝기 정보를 획득하며, 획득된 밝기 정보를 높이 정보로 변환하고, 대상체의 단면 관련 정보를 높이 정보에 기초하여 입체적으로 디스플레이하기 위한 방법이 개시된다.