Abstract:Arabinoxylan （AX） is an important non-starch polysaccharide from wheat bran. AX has been paid more attention worldwide for its better prebiotic function and has promising applications in the food industry.The purification methods of AX have been extensively studied in recent years，and different purification methods show different effects on the removal of protein，starch，and other impurities in AX. Purified AX can selectively promote the growth of beneficial microorganisms such as Bifidobacterium and Lactobacillus in the intestinal tract and improve intestinal health. Currently，relevant studies have reported that AX has better prebiotic functions than soluble dietary fibers such as inulin and oligofructose. This review mainly focused on the recent research progress in China and abroad on the purification of wheat bran AX and its prebiotic functions，providing some theoretical references for the development and utilization of AX products.