A spraying tooling of a motor vehicle wheel hub is provided. The spraying tooling includes an assembly line, multiple wheel hub bases each capable of moving on the assembly line, multiple driving mechanisms each capable of driving a wheel hub base to rotate at a preset position on the assembly line, multiple triggering components each capable of triggering a driving mechanism to operate, multiple maintaining components each capable of maintaining a preset time for a triggering component, and a control component; the wheel hub base includes a sliding seat capable of moving on the assembly line and a tray capable of rotating along with rotation of the driving mechanism, and the tray is rotatably mounted on the sliding seat; and all of the driving mechanisms and the triggering components are electrically connected to the control component.