Abstract: This paper introduces the recent studies of hydrophobic modification of konjac glucomannan (KGM). The latest research progress on blending KGM with macromolecules via hydrophobic modification were also described，and emphasis is made on the latest development of KGM modification methods，including deacetylation，cross linking，graft copolymerization，interpenetration polymer net (IPN)，carboxymethylation. The research directions are also discussed，and thermoplastic KGM would provide a promising way for resolving the ‘white pollution’.