The present application provides an adaptor, the adaptor includes a plug, a signal extension cord and an adaptor body; the signal extension cord is in an L shape, and one end of the signal extension cord is connected to a sidewall of a tail end of the plug, the other end of the signal extension cord is connected to the adaptor body, such that the plug, the signal extension cord and the adaptor body are integrally formed a U-shaped structure, and when the adaptor is configured to be plugged into a communication interface of an electronic device, the adaptor body is configured to be located on a back side of the electronic device. The present application provides an adaptor, which has a function of curved structure, and improves the user experience when holding the electronic device.