It can be seen from the principle of laser positioning algorithm that no matter what kind of positioning algorithm it is, it all depends on the reflector to achieve.The positioning accuracy not only depends on the positioning algorithm, but also is affected by the size and distribution of reflector.If the reflector is too short, the AGV will not be able to scan the reflector in an uneven working environment.If the distribution of reflectors is unreasonable and they are not arranged according to certain rules, part of the reflectors will be blocked by obstacles and cannot be measured, resulting in measurement errors.Therefore, in order to improve the positioning accuracy, appropriate reflector specifications must be selected according to the road conditions in the AGV driving area, and the accurate layout must be carried out according to certain rules