The invention relates to a testing device for Powered USB (Universal Serial Bus) ports, comprising a Powered USB plug, a singlechip and a plurality of light emitting diodes, wherein the Powered USB plug is used for connecting a Powered USB port to be tested; the singlechip collects a signal received by the Powered USB plug; and the light emitting diodes are connected with the singlechip. When thesignal collected by the singlechip satisfies the requirement, the corresponding light emitting diode on the singlechip emits light. The testing device for the Powered USB port is simple, has small size and low cost, and can be used for testing various Powered USB ports.