USB power supply equipment power supply power test circuit and test method thereof

The invention discloses a USB power supply equipment power supply power test circuit and a test method thereof, the USB power supply equipment power supply power test circuit comprises USB power supply equipment and a USB port to be tested, one end of the USB power supply equipment is connected with the USB port to be tested through a USB connecting line, and the other end of the USB power supply equipment is connected with a main control unit and other circuits. And the fast charge decoy circuit is used for applying for fast charge output from the USB to-be-tested port of the to-be-tested product and setting different fast charge protocols for decoy according to the output specification of the USB to-be-tested port of the to-be-tested product. And the main control unit is used for configuring the working state of the power supply circuit according to the specification of the USB to-be-tested port of the to-be-tested product. The high-speed voltage and current sampling circuit comprises a voltage detection ci