A method for increasing cuticular wax biosynthesis of plant includes transforming a plant cell with the recombinant vector containing MYB96 (myb domain protein 96) gene from Arabidopsis thaliana. A method for producing a transgenic plant with increased cuticular wax biosynthesis includes transforming a plant cell with the recombinant vector containing the MYB96 gene, and regenerating the transformed plant cell into the transgenic plant. A plant and a seed with increased cuticular wax biosynthesis are produced by the method. A method for producing a biofuel using a cuticular wax includes separating and purifying a cuticular wax from the plant. A composition for increasing cuticular wax biosynthesis of plant includes the MYB96 gene.
