Based on the method of network pharmacology, we found that there were 15 common genes in atherosclerosis and NSCLC, including CD163, MMP9, ACP5, FABP4, EMCN, CD52, NPR1, MMP12, C2, ITLN1, FHL5, CD36, FIBIN, C7, and NPNT. This evidence concerns the gene MMP9 and atherosclerosis.