A lighting micro hydraulic power generator includes a leaving water shell, a coil module, a lighting module, a fan, and an entering water cover. The leaving water shell has a container, a plurality of leaving water holes, and a screw thread. The coil module is set within the container of the leaving water shell, which is able to receiving external force for power generation and outputting power. The lighting module is set on the bottom of the leaving water shell, wherein the lighting module is electrically connected to the coil module, and is powered by the coil module to emit light. The fan is connected to the coil module, when the fan is driven by the external force to rotate, it is able to drive the coil module to generate and output power.