With the increasingly high degree of automation in the field of logistics, various information technologies such as photoelectric technology, computer technology, control technology and so on have been widely used, among which laser detection technology with its advantages in ranging, positioning and other aspects, has played a key role in laser stacker and automatic guide machine and other equipment, and actively promoted the overall performance of the logistics system.Especially in the automatic control system of rail roadway stacker, the application of laser ranging and positioning, PLC control, distributed field bus, vector frequency control and other technologies makes the control system of rail roadway stacker go beyond the original design ideas, realize the absolute recognition of stacker, not only effectively solve the accuracy and reliability of counting and positioning problems, Moreover, it is convenient to realize smooth speed regulation, optimize the speed regulation curve, optimize the starting and braking performance, so as to improve the overall performance of the stacker, to ensure that the overall performance is reliable, stable and efficient. At present, the technology has been widely used in machinery, food, tobacco, electronics, automobiles, distribution centers, medicine, electrical appliances and warehousing.