A digital denture manufacturing method comprising the steps of: a first step (210, 220) of acquiring a three-dimensional work image, on which occlusion information between a target dental arch and an opposing dental arch and implant information of a fixture implanted in the target dental arch are displayed, and preparing a temporary denture in which a binding region formed to correspond to a binding portion profile of an abutment fastened to the fixture is arranged; a second step of acquiring an auxiliary scan image for the temporary denture; a third step of acquiring, from the auxiliary scan image (If), a correction surface image on 3D surface information of an inner surface-side engagement groove of the temporary denture including the binding region; and a fourth step of designing and manufacturing a digital denture having a virtual binding groove corresponding to a position and shape of the 3D surface information of the binding region in an inner surface profile set according to the 3D surface information of the engagement groove, characterized in that the third step further includes: virtually arranging a virtual abutment (8d, 800d) extracted from a digital library corresponding to the abutment to correspond to the 3D surface information of the binding region included in the correction surface image; and replacing and correcting the 3D surface information of the binding region along an outer periphery region of the virtual abutment (8d, 800d). a first step (210, 220) of acquiring a three-dimensional work image, on which occlusion information between a target dental arch and an opposing dental arch and implant information of a fixture implanted in the target dental arch are displayed, and preparing a temporary denture in which a binding region formed to correspond to a binding portion profile of an abutment fastened to the fixture is arranged; a second step of acquiring an auxiliary scan image for the temporary denture; a third step of acquiring, from the auxiliary scan image (If), a correction surface image on 3D surface information of an inner surface-side engagement groove of the temporary denture including the binding region; and a fourth step of designing and manufacturing a digital denture having a virtual binding groove corresponding to a position and shape of the 3D surface information of the binding region in an inner surface profile set according to the 3D surface information of the engagement groove, characterized in that the third step further includes: virtually arranging a virtual abutment (8d, 800d) extracted from a digital library corresponding to the abutment to correspond to the 3D surface information of the binding region included in the correction surface image; and replacing and correcting the 3D surface information of the binding region along an outer periphery region of the virtual abutment (8d, 800d). virtually arranging a virtual abutment (8d, 800d) extracted from a digital library corresponding to the abutment to correspond to the 3D surface information of the binding region included in the correction surface image; and replacing and correcting the 3D surface information of the binding region along an outer periphery region of the virtual abutment (8d, 800d).