Abstract: In order to obtain the human error data in metro and prevent human error accidents effectively, a method to collect the error data of metro staff by using the simulator is proposed, and the metro train dispatching system is taken as an example to verify the effectiveness of the method. According to the characteristics of the traffic dispatching system and tasks, visual C# software is used to design the main interface of ATS system workstation for a certain line, twenty trained graduate students are selected as the experimental objects, for whom six different scenarios and specific operation steps are set up to obtain the human error data. The result of data statistics shows that the menu bar operation error rate is lower than that of the right click, while the "find the timeout stop train" scenario makes the most errors. The experimental results provide references for the optimization of scheduling plans.