The invention relates to a connector, a method and a device for controlling the connector and electronic equipment. The connector comprises a first end, a second end, a third end and a first connecting module. The first end is used for being connected with interfaces of terminals; the second end is used for being connected with power lines; the third end is used for being connected with audio input/output assemblies; the first end comprises a power pin and a data pin, the power pin is connected with the second end, and the first connecting module is connected with the data pin, is connected with the second end when first signals from the data pin are received and is connected with the third end when second signals from the data pins are received. According to the technical scheme, the connector, the method, the device and the electronic equipment have the advantages that charge operation can be carried out on the terminals when users connect the connector to the interfaces and listen to music from the terminals, the users do not need to unplug the audio input/output assemblies connected to the connector, and accordingly the interface use experience can be improved for the users.