Based on the 348 DE-IRGs, we built a PPI network and obtained eight hub genes using MCODE analysis, including FPR2, RASGRP1, LTBR, ACKR1, PTGS2, JUN, TNFRSF1A, and CYLD to explore the regulatory networks and crucial pathways underlying CHD. This evidence concerns the gene RASGRP1 and coronary artery disorder.