Due to the large-scale and large destructive nature of tailings pond dam break, it is difficult to carry out physical model experiment in practical teaching. As an innovative teaching method, experimental teaching based on virtual simulation has been well applied in many fields of teaching and has achieved good results. Based on the virtual simulation system of the tailings dam break laboratory at Nanchang University, this paper proposes a virtual-simulation-based experiment teaching plan of "one platform, two orientations, three levels and four modules". The specific program and its characteristics of virtual simulation experiment teaching on tailings dam break are introduced. Two main problems in the experimental teaching based on virtual simulation are summarized and corresponding solution countermeasures are put forward.