Vehicle-mounted wiring device of interphone and interphone

A vehicle-mounted wiring device of an interphone and the interphone are used for connecting the interphone with a vehicle-mounted power supply and a vehicle-mounted antenna. Comprising a connector, a power connecting line and an antenna connecting line. The plugging end of the joint is provided with two contact groups so as to be plugged with the plugging end of the interphone and realize electrical connection, and the joint is also provided with a fastener so as to be matched with the interphone in a buckling manner to realize detachable fixed connection; the power supply connecting line is electrically connected with the two contact groups respectively, and the antenna connecting line is electrically connected with the two contact groups respectively. According to the utility model, the plugging connection between the wiring device and the interphone is not influenced by the direction, and the wiring device and the interphone are detachably fixed in a more stable and reliable manner, so that the wiring devi