The present invention discloses a manufacturing method and apparatus of artificial human teeth using dental CT. The method comprises the steps of: removing a damaged part of human teeth obtaining surface coordinates of the teeth using a dental CT machine located at a dental clinic for a medical checkup converting the surface coordinates of the actual teeth to CAD/CAM data manufacturing artificial teeth by cutting metal or ceramic with a three-dimensional N/C machine using the converted data obtaining shape data of upper or lower actual teeth corresponding to the artificial teeth changing the shape of the artificial teeth by direct surface processing according to the shape data of the upper or lower teeth and coating ceramic to the artificial teeth after sintering the processed artificial teeth for a predetermined period.