USB socket is a safe and power-saving universal socket with a USB interface. It is a weak-current electronic product. It includes a socket main body, a USB female socket is arranged on the socket main body, and a linkage switch is arranged on the USB female socket. and a USB socket; a charger module is arranged in the main body of the socket, the input end of the charger module is connected in parallel with the output end of the linkage switch, and the positive and negative poles of the output terminal correspond to the positive and negative poles of the power supply terminal of the USB socket. The input end of the linkage switch is connected with the power supply.