To solve the problem of random distribution paths of precast concrete components, a method of dividing the distribution area into multiple distribution sub-areas is designed by meshing the distribution area. The total length of the path is divided into cloth length and non-cloth length, of which the cloth length is a certain value, and the cloth operation is planned for the sub-areas, and the cloth width corresponding to the number of discharge openings is calculated. Using the enumeration method and dynamic programming algorithm, the distribution path planning model for the set of the discharge port and the distribution sub-area of the auger is established, the decision value in the multi-stage decision-making is calculated, the model with the shortest non-distribution length as the goal is solved, the shortest cloth path is got, and the full coverage path planning of the auger for the cloth area is completed. According to this method, a two-dimensional distribution path planning model is established for a auger and a prefabricated exterior wall siding. The simulation results show that this method can effectively shorten the distribution length and reduce the distribution time, and has certain guidance for the production of precast concrete components.