A method of managing an ultrasound image, the method including storing a plurality of pieces of setting information to respectively match a plurality of observation operations for diagnosing an object, each of the plurality of pieces of setting information including at least one from among information about an observation plane that splits ultrasound volume data in a predetermined direction, information about a split method of splitting the ultrasound volume data, and information about a reference point displaying a plurality of plane images for a current observation operation, wherein the plurality of plane images are obtained based on a piece of the setting information matching the current observation operation storing an image selected from among the plurality of plane images according to an external input signal such that the selected image matches the current observation operation.