Abstract: The existing distribution secondary equipment IoT self-organizing network construction relies heavily on local routing mechanisms to achieve dynamic communication, resulting in a significant decrease in global communication efficiency. Therefore, the design of flexible IoT self-organizing network communication technology for distribution secondary equipment is studied. Based on the communication requirements of secondary devices, a lightweight self-organizing network architecture is constructed, and an adaptive routing communication strategy is introduced to achieve dynamic correlation of multi area links. An intelligent link recovery mechanism is designed to ensure that the network can quickly complete link reconstruction in complex environments such as node movement and signal interference, thereby achieving flexible self-organizing network communication in the Internet of Things. The experimental results show that the flexible self-organizing network communication technology of the Internet of Things for distribution secondary equipment achieves a communication efficiency between 92-98%, which improves communication efficiency and has superior performance.