The present invention relates to an implant image creating method which obtains a hybrid image for a tooth structure and a gum structure by combining computed tomography (CT) data and stereo lithography (STL) data using a reference plate. The present invention is performed by an implant image creating system that creates an implant image and plays the implant image on a display device and said system can include the steps of: obtaining STL data that represents a three dimensional structure in a polygon with reference to CT data and plaster patterns of teeth obtained when a bite including a reference plate is inserted into the mouth of a patient； after matching the coordinates of the reference plates in the CT data and STL data correcting the CT data on the basis of the STL data； and creating the hybrid image so as to allow the corrected CT data to represent a first density area and the STL data to represent a second density area.
