Power supply having USB hub

The present invention discloses a power supply having an USB hub. The power supply comprises a power supply body and an USB hub. The power supply body at least comprises an output port for connecting to an electric appliance and outputting electricity to it, and an installation part having a power-supply port for installing and enabling the USB hub. The USB hub has an USB input slot, plural USB output slots, and a fastening part for fixing and connecting to the power supply body. The present invention provides a solution to the problem of requiring additional power supply when the energy required by the hardware is insufficient during the one-to-many data transmission. Also, the USB hub can be installed in or detached from the power supply depending on the user's requirement.