To provide a device for preventing omission of object delivery by guaranteeing the working accuracy in baggage delivery.

In the delivery omission preventing device, the counted number of objects to be delivered is subtracted from the number of drawn objects to be delivered and the remaining number (B) of objets to be delivered is displayed on a display device in a step S5. In a step S6, whether the remaining number B is '0' or not is judged. In a step S7, whether a rear door is closed or not is judged, and when it is not closed, operation is returned to the step S5. When the rear door is closed, the operation goes to a step S9 and a buzzer is driven to generate an alarm. In a step S10, whether the rear door is opened or not is judged, and at the time of judging the open, the operation goes to a step S11, the buzzer is stopped, and after resetting the alarm, the operation is returned to the step S5. Since objects of a corresponding number are delivered to a delivered destination in the a step S8, i.e., the delivery has been completed, the display device is turned off.