Abstract: In order to realize virtual disassembly and driving teaching of agricultural machinery structure in course of Agricultural Mechanics, Solidworks and 3Ds Max were used to create a three-dimensional model of agricultural machinery which matched teaching content of Agricultural Mechanics．Based on Unity 3D, combined with X Dreamer visual programming and C# script programming, a virtual simulation platform for agricultural machinery disassembly and driving that could realize human-computer real-time interaction was developed．Framework and interface were constructed, process and procedure code of virtual assembly and virtual driving were explained．Users could conduct virtual disassembly, virtual driving and virtual navigation on simulation platform, more intuitively and deeply grasp core knowledge points such as complex structure and operation principle of agricultural machinery, and achieve unity of theoretical knowledge and practical knowledge．It could provide support for development of virtual disassembly and driving simulation platform．