A composite connection socket includes a metal housing, an insulative main body, a first row conductive terminal and a second row conductive terminal. The metal housing includes an accommodating space formed therein, and the insulative main body is received inside the accommodating space. The insulative main body includes a first side plate, a second side plate and a base; the first side plate and the second side plate are arranged corresponding to each other and protrude from the base. The first row conductive terminal is arranged on the first side plate and complies with a micro USB communication protocol interface. The second row conductive terminal is arranged on the second side plate and complies with a lightning standard interface. The composite connection socket is able to commonly accommodate two cable connectors of different standards of a micro USB connector or a lightning connector inserted therein.