Laser back scattering detection device

The utility model relates to the technical field of laser detection, and discloses a laser back scattering detection device, which comprises a transmitting part, a laser transmitter and a projectile body, the laser transmitter is arranged on the transmitting part and transmits a laser beam, and the projectile body advances along the laser beam and is used for detecting the laser beam. An annular photoelectric detector array is installed at the position, close to the head, of the outer wall of the projectile body, and an annular state narrow-band optical filter is installed on the outer wall of the projectile body and used for covering and protecting the annular photoelectric detector array. The annular photoelectric detector array is installed on the outer wall of the projectile body and can cooperatively capture photon signals of peripheral laser beams, so that the flight position of the projectile body is analyzed, and accurate guidance of the laser beams on the flight path of the projectile body is guarant