The present disclosure relates to an artificial intelligence-based oral CT automatic color conversion device and a method for driving same. The artificial intelligence-based oral CT automatic color conversion device according to an embodiment of the present invention comprises: a storage unit which stores a color conversion image related to the bone density of an alveolar bone, which is previously prepared by a user; and a control unit which, when an oral CT input image of a patient is received, converts color of the received oral CT input image on the basis of a predetermined parameter value, and adjusts the predetermined parameter value by using an error value resulting from the converted oral CT input image and the (pre)stored color conversion image to automatically convert the color of an oral CT input image to be input later.