The invention discloses a device capable of being automatically connected to a charging power source and a charging port on an automobile through a mechanical arm. The device does not need to be connected to a plug manually, through
wireless communication between the plug and an automobile, the device is connected automatically to charge after the automobile is stopped, the device is automatically
cut off before the automobile is started, and operation complexity is simplified. The automatic charging interface connection device is characterized in that the device further comprises a
control system, a photographic device and a mechanical arm. The photographic device is arranged on the charging plug, the charging plug is arranged at the front end of the mechanical arm. The
control system controls the mechanical arm to move in the three-dimensional space according to image information filmed by the photographic device, and the charging plug is inserted into a charging interface.