Error detection device and control method for laser communication link beams

The invention discloses an error detection device and a control method for laser communication link beams, belongs to the field of optical image processing, and solves the problems that single charge coupled device (CCD) is adopted to perform error detection, the control beams reduce the whole working bandwidth of the system, satellite platform high-frequency vibration cannot be effectively compensated, coarse sighting and fine sighting are easily coupled and the control stability is lower. Coarse sighting instruction output ends of an array CCD detector and a control module thereof are connected with an input end of a coarse sighting module; an output end of the coarse sighting module is connected with an input end of a coarse sighting executing mechanism; an output end of the coarse sighting executing mechanism is connected with beam coarse sighting correction input ends of the array CCD detector and the control module thereof; the fine sighting instruction output ends of the array CCD detector and the control module thereof are connected with an input end of a fine sighting module; an output end of the fine sighting module is connected with an input end of a fine sighting executing mechanism; and an output end of the fine sighting executing mechanism is connected with the beam fine sighting correction input ends of the array CCD detector and the control module thereof.