An unloading apparatus comprises a sensor interface, a gripping unit interface and a processor. A sensor interface acquires a photographed image from a sensor that photographs an image of a cargo group. A processor transmits, in a case of successfully recognizing each piece of cargo of a same-type cargo group, a first control signal to the gripping unit to perform unloading according to a first gripping method corresponding to the same-type cargo group, and transmits, in a case of failing to recognize each piece of cargo of the same-type cargo group, a second control signal to the gripping unit to perform unloading according to a second gripping method corresponding to a mixed-type cargo group including different types of cargo.