Disclosed is a high-voltage current conversion system of a switch reluctance wind power generator. A switch reluctance generator is used as a main wind power generator, and the output electric energyof a permanent magnet direct current generator coaxially connected with the switch reluctance generator is used as exciting electric energy of the switch reluctance generator; each phase of winding ofthe switch reluctance generator comprises two branches which are connected in parallel in excitation while in series in power generation, thereby strengthening the excitation effect; in power generation, the direct current power supply needed by excitation and a charged capacitor in excitation are both connected with the corresponding phase winding to be participated in power generation output, thereby highly improving the output voltage; and the whole current conversion system is high in expandability, high in reliability, simple in structure, easy to control, low in loss and suitable for medium-low-power wind power and medium-high-voltage direct current grid connection or direct current load power utilization fields.