Reviews the current development status of special wax at home and abroad,and introduces some chemical modification methods of special wax,such as the oxidation of paraffin,chlorination of paraffin,cracking of paraffin,graft copolymerization of paraffin,fermentation,nitrification of paraffin and so on,and some by adding natural low molecular polyethylene wax,natural wax,functional additives,physical modification methods of synthetic wax,etc. And briefly points out that the applications of modified waxes with...