Crop image detection and recognition device

The invention relates to the field of agricultural planting, and discloses a crop image detection and recognition device which effectively solves the problem that the detection range is small due to the fact that rootstock parts of crops cannot be detected and recognized at present, the crop image detection and recognition device comprises an unmanned aerial vehicle, wing arms are installed at the top end of the unmanned aerial vehicle at equal angles, and wings are installed at the top ends of the wing arms. A lifting detection assembly is installed at the top end of the unmanned aerial vehicle, a gravity center adjusting assembly is installed at the top end of the unmanned aerial vehicle, and a lens distance adjusting assembly is installed at the top end of the unmanned aerial vehicle. The lifting supporting unit is driven to move downwards, and the mounting plate and the lifting supporting unit move up and down synchronously, so that the detection camera on the mounting plate is driven to move downwards, t