High performance functional fibers are demanded increasingly in the modern industries, while the inorganic fibers such as carbon fibers, glass fibers, and metal fibers are representative among them in that they have high strength, consistent properties in a broad temperature change, etc.. This paper reports on the experimental trial to apply the microwave furnace on melting the natural basalt rock that spreads overall on the global surface and is supposed to be used as the raw material for the inorganic high performance fiber. Results showed that the new method to use the microwave as the heating source to melt the basalt rock was feasible. The crucible spinning could effectively applied for producing the basalt fibers up to 10 micrometer diameter, when the crushed basalt rocks were used. For drawing the molten basalt the drawing roller surface feature was a very important factor.