Abstract: The present invention discloses a cable module capable of simultaneously supporting quick charge and data transmission of an electronic device, comprising: a USB device, which is a USB connector, and includes a circuit board and a protruding plug portion, and the circuit board has an integrated circuit and a switch electrically coupled to the circuit board, and the integrated circuit has a specification and a property for recognizing a portable electronic device which are saved in the integrated circuit, and the switch is set to at least a quick charge mode and a data transmission mode; and a cable device, with an end electrically coupled to the USB device, and the other end having an electric connector, so that the composite cable module can support quick charge and data transmission of an electronic device simultaneously, manage the electronic device effectively and provide convenient carry and use.