The invention discloses a communication device switching device. The communication device switching device comprises a device shell, wherein a wire placing groove is formed at the front side of the device shell; a conversion inner cabin is arranged in the device shell; a conversion connection wire is arranged in the wire placing groove; an insulating mounting seat is arranged at the front end of the conversion connection wire; a conversion conductive core is mounted on the insulating mounting seat; a first slot is formed at the back surface of the device shell; a second slot is formed at the right end of the first slot; a third slot is formed at the right end of the second slot; and a strip-shaped clamping hole is formed at the left end of the wire placing groove, so that the problems aresolved that the types and manufacturers of various electronic devices are different and the specifications of the slots are different, this situation causes the condition that the user needs to prepare a plurality of different specifications of transmission connectors for different electronic devices, and the transmission connectors are lost due to not easy accommodation to result in waste of resources and money.