Embedded simulation is an important technical support for training simulation. However, traditional embedded simulation training systems have limitations, since they are designed for single training scenarios, resulting in limited system functionality and poor flexibility. Moreover, customizing the development of embedded simulation training systems leads to long system development cycles and redundant resource investments, which cannot meet the technical demands for system reconfiguration in diverse and changing scenarios. This paper investigated software-defined based reconfiguration technology, and proposed a method for constructing embedded simulation training systems, which can meet the reconfiguration requirements of embedded simulation systems in various training scenarios and achieve a versatile, adaptable, and networked simulation support capability.