A pharmaceutical injecting device (1) comprises a main body case (2), a piston (9), a drive mechanism (20), a display component (6), and a controller (14). The body case (2) has a cartridge holder (7) in which a pharmaceutical syringe (8) is installed. The piston (9) is provided movably with respect to the pharmaceutical syringe (8) that is installed in the cartridge holder (7). The drive mechanism (20) drives the piston (9). The controller (14) is electrically connected to the drive mechanism (20). The display component (6) is connected to the controller (14). The controller (14) has a display controller (100). The display controller (100) causes the display component (6) to display a plurality of injection sites (P1 to P10) and to display at two or more injection sites selectable displays (A1 to A10) indicating that those injection sites are suitable for injection.
