Abstract: An investigation of Odonata in 2014 showed that there were 35 species， belonging to 26 genera， 6 families， 2 suborders in Macao. Among them， Pantala flavesens， Ceriagrion aeruginosum， and Ischnura senegalensis were dominant species. Faunal characteristics of Odonata in Macao showed that 27 oriental species and 8 cosmopolitan species， occupied 77.14％ and 22.86% in total， respectively. The diversity index， evenness index， dominance index， and superiority centrality index of Odonata in Macao were 2.8084， 0.7899， 0.1981 and 0.0910， respectively. Similarity index of Odonata in Macau Peninsula， Taipa Island and Coloane Island was 47%-77%. Richness and diversity of Odonata in Coloane Island was the highest， Taipa Island followed， and Macau Peninsula was the lowest.