Abstract: In the polyblend fibers from liquid crystal polymers (LCPs) and polypropylene,the LCPs exist as thin and long micro fibers.Cold drawing of the as-spun polyblend fibers is necessary in order to improve the molecular orientation of polypropylene within it.The drawing behavior of the polyblend fibers was analyzed, and the factors affecting the length of the LCP microfibers after drawing was discussed.