Bluetooth BLE4.0 based infinite networking system and information transfer method

The invention discloses a Bluetooth BLE4.0 based infinite networking system. The system is used to form a cluster tree network; the cluster tree network comprises multiple cluster tree nodes; and each cluster tree node comprises a storage module, a sending module, a reception module, a verification module and a connection module, wherein the storage module stores the network characteristic number and information, the sending module sends and broadcasts the network characteristic number and information of the cluster tree node, the reception module receives the characteristic number and information from nodes in the same cluster tree network, the verification module verifies whether the network characteristic number received by the reception module is consistent with that of the node itself, and the cluster tree nodes of the same network characteristic number in the same cluster tree network are successively connected to form the network with the multiple nodes. The cluster tree network can support data interaction of low speed, low data bulk and low power consumption, and the method optimizes network management, simplifies the networking process and is high in networking speed.