A patch guide method comprising: acquiring a 3-dimensional scan model including the head of an object by using a depth camera, by a computer; acquiring a 3-dimensional brain MRI model of the object; matching the scan model and the brain MRI model to acquire a matched model; acquiring an image captured by photographing the head of the object by using the depth camera; matching one location of the captured image and one location on the matched model; and displaying an image that guides the patch to the matched location, at which the patch is to be attached to the head of the object, in the captured image; wherein the displaying of the image includes: determining a location, at which the patch is to be attached, on the matched model; and displaying a location corresponding to the determined location in the captured image; wherein the patch is a brain stimulation patch; wherein the patch guide method further comprises: recognizing the patch in the captured image; guiding a movement direction of the recognized patch; and determining whether the recognized patch is attached at the determined location; wherein the acquiring of the 3-dimensional brain MRI model of the object includes: acquiring a brain MRI image of the object; and generating a 3-dimensional brain map of the object, based on which a delivery process of an electrical stimulus for the brain of the object is simulated based on properties of a plurality of areas included in the brain MRI image, and wherein the patch guide method further includes: determining a location of the patch, at which the patch is to be attached to the head of the object, by using the 3-dimensional brain map; wherein the determining of the location of the patch includes: acquiring an objective of using the patch; simulating a process of delivering an electrical stimulus to the brain of the object according to the location, at which the patch is attached to the head of the object; and determining the location of the patch by using the acquired objective and the simulation result. acquiring a 3-dimensional scan model including the head of an object by using a depth camera, by a computer; acquiring a 3-dimensional brain MRI model of the object; matching the scan model and the brain MRI model to acquire a matched model; acquiring an image captured by photographing the head of the object by using the depth camera; matching one location of the captured image and one location on the matched model; and displaying an image that guides the patch to the matched location, at which the patch is to be attached to the head of the object, in the captured image; wherein the displaying of the image includes: determining a location, at which the patch is to be attached, on the matched model; and displaying a location corresponding to the determined location in the captured image; determining a location, at which the patch is to be attached, on the matched model; and displaying a location corresponding to the determined location in the captured image; wherein the patch is a brain stimulation patch; wherein the patch guide method further comprises: recognizing the patch in the captured image; guiding a movement direction of the recognized patch; and determining whether the recognized patch is attached at the determined location; recognizing the patch in the captured image; guiding a movement direction of the recognized patch; and determining whether the recognized patch is attached at the determined location; wherein the acquiring of the 3-dimensional brain MRI model of the object includes: acquiring a brain MRI image of the object; and generating a 3-dimensional brain map of the object, based on which a delivery process of an electrical stimulus for the brain of the object is simulated based on properties of a plurality of areas included in the brain MRI image, and acquiring a brain MRI image of the object; and generating a 3-dimensional brain map of the object, based on which a delivery process of an electrical stimulus for the brain of the object is simulated based on properties of a plurality of areas included in the brain MRI image, and wherein the patch guide method further includes: determining a location of the patch, at which the patch is to be attached to the head of the object, by using the 3-dimensional brain map; determining a location of the patch, at which the patch is to be attached to the head of the object, by using the 3-dimensional brain map; wherein the determining of the location of the patch includes: acquiring an objective of using the patch; simulating a process of delivering an electrical stimulus to the brain of the object according to the location, at which the patch is attached to the head of the object; and determining the location of the patch by using the acquired objective and the simulation result. acquiring an objective of using the patch; simulating a process of delivering an electrical stimulus to the brain of the object according to the location, at which the patch is attached to the head of the object; and determining the location of the patch by using the acquired objective and the simulation result.