Images shared by the official Korean Central News Agency showed the unmanned vehicle taking off and then destroying a target.
State media said the exercise demonstrated the "excellent combat effectiveness of Kumsong-series tactical attack drones", reporting Kim expressed "great satisfaction" with the result.
Drones are emerging as a "major military activity asset, raising it as a top-priority and important task in modernizing the armed forces of the DPRK," Kim reportedly said, using the acronym for North Korea.