Abstract: After the miniaturization of the video recording is completed，it is transplanted on the UAV which will not cause casualties，applied to the military or high risk areas．In order to avoid the failure of the recording，it needs a lot of comprehensive detection before the flight．The structure and principle of a video equipment are introduced，the environment and method of the ground detection are discussed．The rationality is verified by the comparison of the video image on the ground and in the air.

Key words: Video equipment, Detection method, Image comparison