The power dispatching operation has an essential role in the power system, it affects the power supply reliability of the power system, whether the dispatching is reasonable and efficient is also one of the main factors for users to investigate. In order to better carry out the power dispatching operation, this paper hopes to design a simulation training system to train the dispatching commanders in this work, improve their working ability, and then feed back to the power dispatching operation. In this paper, virtual reality technology is integrated into the training system to make the training more immersive and realistic, and improve the trainees’ learning willingness and training effect. In the results and discussion section, this paper conducts comparative experiments from multiple angles to try to verify the effectiveness of the proposed method. In the system reliability comparison experiment, the average reliability index of the experimental group is 87.91, while the average reliability index of the control group is only 83.08, and the gap is obvious. Therefore, the experimental results show that the training system designed based on the proposed method can significantly improve the power dispatching capability of the power system, thus improving its comprehensive reliability.