According to one embodiment of the present invention, there is provided a method for setting a customized tooth color, comprising: a first step of generating a patient's tooth color data; a second step of setting tooth color data for each section of artificial tooth based on the patient's tooth color data; a third step of performing an aesthetic prediction display based on the tooth color data for each section of artificial tooth, and correcting errors by comparing the artificial tooth displayed by the aesthetic prediction display with the patient's tooth color data; and a fourth step of determining artificial tooth color data by reflecting error correction.