Cytochrome P450 (CYP450) is a key element in the Ganoderma triterpenoid biosynthetic pathway.  The catalytic reaction process for CYP450 requires NADPH / NADH for electron transfer.  After searching the genome dataset of Ganoderma lucidum, the unique sequence encoding CYP450 and NADPH were discovered, separately.  The open reading frames of GLCYP450 and GLNADPH were cloned separately using RT-PCR strategy from G. lucidum.  The appropriate restriction enzyme cutting sites were introduced at the 5' and 3' ends of gene sequence.  The genes of GLCYP450 and GLNADPH were recombined into the yeast expression vector pESC-URA, leading to the formation of the yeast expression plasmid pESC-GLNADPH-GLCYP450.  This study provides a foundation for researching Ganoderma triterpene biosynthesis using the approach of synthetic biology.