The invention relates to a six-element fiber yarn compounding technology. Six types of fibers, namely lules rainbow fibers, glazed flat blue fibers, glazed flat purple fibers, black terylen conducting fibers, glazed viscose fibers and cotton fibers are taken as raw materials. In reference to the dry weights of six types of fibers during blending, the raw materials include the following ingredients in percentage by weight according to the designed dry weight blending ratio and the measured moisture regaining rate-wet weight ratio: 1% of lules rainbow fibers, 7% of glazed flat blue fibers, 2% of glazed flat purple fibers, 5% of glazed black terylen conducting fibers, 25% of viscose fibers and 60% of cotton fibers. Colorful pearly yarns which are good in wearing performance, good in decorative function and special in luster (navy and brown as a berry) and are uniformly provided with splattering starlights can be successfully prepared by virtue of processes of selecting six-element combined spinning raw materials, shredding and removing impurities, blending, carding, combining, drafting, twisting, winding and the like.