Abstract: MYC is one of the subfamilies of bHLH transcription factor family. In this study, 8 ZmMYC genes were identified in the maize（Zea mays） genome, and their physicochemical properties, gene structures, conserved domain,phylogenetic relationship, and expression patterns were analyzed. The results showed that their physicochemical properties were different, each Zm MYC protein containing a bHLH＿MYC＿N domain in the N-terminal and a bHLH domain and a leucine zipper region in the C-terminal. Gene structure showed that there were 4 ZmMYCs had one exon, and other 4 ZmMYCs contained 2 to 6 introns. Multiple sequences alignment showed that maize, wheat,rice MYC proteins showed highly conservatism in the conserved domains. Cis-element analysis showed that there were some development-related and abiotic stresses related cis-element in the promoter of ZmMYC genes. Expression pattern showed that maize MYC genes exhibited expression tissue. This study provided a scientific basis for further study on the biological functions of maize MYC transcription factor family.