Abstract: The scale and number of prefabricated buildings are constantly expanding, and the type and number of components are required to increase greatly. However, the current component mass production standardization level is low, digital management level is not high, resulting in component production efficiency low and difficult to achieve the expected production capacity. In this paper, an improved genetic algorithm is proposed for the production scheduling optimization of PC component plant based on the actual situation of production line and the analysis of component scheduling process.