Abstract: The invention discloses a wing-shaped and combined retractable plug, a front end as a fixed connector and two opposite lateral sides as a first retractable connector and a second retractable connector. The incorporation of the fixed connector, and the first and second connectors through the upper and lower shells results in a combined plug, which may charge up to three devices simultaneously or be used for data transmission with one device. The combined plug may contain different types of interfaces, so that the types and number of the connectors required to be carried are reduced. Since connecting wires are connected directly to the fixed connector and the first and second connectors, the transmission circuit resistance is reduced and more devices may be simultaneously charged and connected for data transmission. Compared with plugs in the prior art, the present combined plug is small sized and easy to operated.