Disclosed is a method for generating a three-dimensional brain map, comprising the steps of: acquiring a brain magnetic resonance imaging (MRI) image of an object; segmenting the brain MRI image into a plurality of regions; generating a three-dimensional brain image of the object including the plurality of regions by using the segmented brain MRI image; and generating a three-dimensional brain map of the object capable of simulating a process of transferring electrical stimulation to the brain of the object based on properties of each of the plurality of regions included in the three-dimensional brain image, wherein the step of segmenting includes the step of acquiring a segmented brain MRI image of the object by inputting a brain MRI image of the object into a model learned by using a plurality of processed brain MRI images.