The invention provides a network-edition team intelligent explaining transmitter and a system structure and a positioning-switching method; the explaining transmitter comprises a core control unit, a display module, a power module, an infrared module, a WIFI (Wireless Fidelity) module, a Bluetooth module, an audio transmission module and a data transmission module, wherein the display module, the power module, the infrared module, the WIFI module, the Bluetooth module, the audio transmission module and the data transmission module are respectively connected with the core control unit. Compared the network-edition team intelligent explaining transmitter disclosed by the invention with the former explaining transmitter, the functions are more intelligent and diversified: the real-time management and control of a background center to tour guides and tourists as well as the real-time management and control of the tour guides to the tourists are realized; and the network-edition team intelligent explaining transmitter has multiple functions such as function automatic optimization capability, dual click-to-play manner, network connection, explanation word automatic reminding, real-time recording, online explanation, recording-playing explanation and the like according to environmental changes.