The present invention provides an Effector Power Adapter for connecting an effector, the Effector Power Adapter includes a power supply module, at least one first voltage transformation module and multiple voltage output ports, wherein the voltage output port has at least one first voltage transformation output port. The first voltage transformation module is electrically connected to the power supply module and the first voltage transformation output port, and the first voltage transformation module controls the first voltage transformation output port to output numerically continuously adjustable voltages. The present invention further provides an Effector Working System, which has an effector and the above effector power adapter. The Effector Power Adapter and the Effector Working System provided by the present invention can apply different voltages to an effector to produce different sound effects, which enriches the playing effect and offers more musical creation space for music practitioners.