The development and application of cyclophosphazene compounds in energetic materials were reviewed.The structures,properties,relevant reactions and applications of hexachlorocyclotriphosphazene and octachlorocyclotetraphosphazene and their substitutes were further introduced.Based on cyclotriphosphazene and cyclotetraphosphazene,the experimental and theoretical research progresses in the compounds substituted by azido,amine and nitro groups were summarized,and the application in energetic materials was prospected.