Abstract: Based on the mass production mode intelligent workshop, the scheduling problem of multi-AGV (automated guided vehicle) under single-loop layout is studied. Firstly, the characteristics of typical intelligent workshops are analyzed. Meanwhile, a simulation model based on actual production scenarios is established by the Plant Simulation platform. Secondly, the AGV scheduling rules based on soft time windows and six operating mechanisms based on alternative scheduling rule set are proposed. Finally, through the designed simulation experiment, the seven scheduling rules above are analyzed and compared. The experimental results show that the AGV scheduling method based on soft time window generally performs better, which provides decision support for enterprise configuring and scheduling AGV vehicles.