The　augmented　Zagreb　index　(AZI)　of　a　graph　G=(V,E)　was　recently　introduced　by　FURTULA　et　al,　which　is　defined　as　AZI(G)=∑uv∈E((dudv)/(du+dv-2))3,where　du　denotes　the　degree　of　a　vertex　u　in　G.　The　augmented　Zagreb　index　has　been　proven　to　be　a　valuable　predictive　index　in　the　study　of　the　formation　heat　of　octanes　and　heptanes.　In　this　paper,　the　tight　upper　and　lower　bounds　for　AZI　of　the　catacondensed　hexagonal　systems　are　obtained.　©　2016,　Zhejiang　University　Press.　All　right　reserved.