In order to effectively improve the production efficiency of assembled channels, accelerate the mold turnover and reduce the production cost, an optimized production scheduling model of assembled channels with the goal of minimum production cycle is established, and an improved genetic algorithm for solving the model is designed, taking into account the limited number of maintenance rooms in the assembled channel production line. Taking the channel production line of Xinjiang Shihezi Jintudi Cement Products Factory as an example, the feasibility of the production model is verified, and the stability and effectiveness of the improved genetic algorithm is verified by comparing the traditional sequential production scheduling with the optimized production scheduling obtained by the improved genetic algorithm. The results show that the optimized production scheduling of assembled channels based on the improved genetic algorithm can effectively reduce the production cycle of assembled channels, improve the production efficiency, achieve the purpose of reducing the production cost and improving the core competitiveness of the enterprise.